Why can't we just create a Ground/Fire with whatever stats you want in the next CAP project then? Sure, it replaces Camerupt but evolving Camerupt replaces Camerupt. The only distinction between the results of a CAP for a Ground/Fire and an EVO for Camerupt is that one evolved from Camerupt and one didn't.
Because why bother creating a Camerupt-clone when Camerupt already exists? It would be much easier to take Camerupt, increase its stats a bit, and add on a few moves, than to go through the process of creating a Camerupt clone:
Evolving Camerupt:
-Choosing Camerupt
-Keeping its type the same
-Increase the stats a bit
-Go with the same abilities
-Add on a few moves
Creating Camerupt-clone:
-Choosing role
-Choosing stat distribution
-Choosing stats
-Choosing type
-Choosing abilities
-Creating move-pool
The chance that all of those would favor Camerupt would also be slim. People would rather "break the mold" with CAP and would tend to stray away from options that would have it looking just like a Camerupt-evo (or an evolution of any other Pokemon). It would probably never happen.
Thus, the EVO project: Just like CAP, the point is to create a Pokemon that will fill a niche in the standard metagame that would
benefit the metagame to be filled. Only with the EVO project, instead of starting completely from scratch, we'd take a Pokemon that can fill that niche, but for some reason (not great enough stats, missing a few critical moves, ect) isn't good enough to fill it in its current form, and improve it so that it can.
This is good because again, in CAP people will tend to stray away from things that already exist in the early steps of the process, meaning clones of existing Pokemon, even if it would benefit the metagame to make them, probably won't end of being through it. The EVO project gives an outlet for such things to be made.
Comparing the two current candidates in the EVO project, Farfetch'd and Houdoom, Houndoom seems to strike me as more of what the EVO project should be about: Taking a Pokemon that can fill a role and improving it, since it's currently not quite good enough to really pull it off. But for some reason, people seem to think that EVO=CAP and dismiss this, saying Houndoom can already "pull it off" and looking towards Farfetch'd, which can't do anything...
Which brings me to it. Farfetch'd currently has no niche, which is one of the reasons being cited to evolve it. People are talking about things like making it Flying/Fighting to give it a role. This just sounds an awful lot like CAP though; you're taking Farfetch'd, which doesn't really have a role, and assigning one to it, simply because "Flying/Fighting would be good for the metagame."
Yes, possibly, but why are we doing this through the EVO project? Why not through CAP? CAP is about creating new Pokemon to fill unfilled niches, which is what it sounds like what we'd being doing here; assinging the role of a flying/fighting sweeper to Farfetch'd, when it doesn't currently have any connection to such a niche and would just have to be assigned to it.
The EVO project should be more focused on simply improving Pokemon that can fill a niche, but just aren't quite good enough to fill it in their current form; they already have the typing, stat spread, ect, and are just in need of their stats being increase a bit and a few more powerful moves being added on.
If not, then there really wouldn't be any difference other than flavor and letting fanboys get the chance to evolve whatever, which definitely isn't enough of a reason to have it.
Linking this to policy (bolding for the people who are tl;dr, since this is the important part of my post), I really feel that, if nothing else, in future EVO projects, people should be forced to explain what niche the Pokemon they're nominating currently fills, and how allowing it to fill that niche in standard would improve the standard meta-game. In other words, no giving Pokemon new niches or assigning them ones; there's already CAP for that.
An example of doing this right woud be:
Houndoom: Special sweeper. Is BL due to having low defense on top of being SR weak, and also doesn't have the best speed for a sweeper causing people to opt for either Infernape or Heatran over it. Giving it more speed and a bit more defense would give people reason to consider using it over them. This will allow another check for Pokemon such as Dusknoir, Cressaila, and the Rotom-forms, while not being overpowering since it still has four weaknesses, all to common attacking types and still being weak to Stealth Rock on top of that.
An improvement on an already existing Pokemon without redefining it or assinging it a role; what the EVO project should be
Doing it wrong:
Farfetch'd: None, but it really, really sucks and could deal with some improvement, much more than a lot of Pokemon, and we could change its type to Flying/Fighting which wold be beneficial for the metagame because...
The EVO project shouldn't be assigning Pokemon roles, because assigning roles to Pokemon and going from there is what CAP does; if we wanted to create a Flying/Fighting Pokemon, when there isn't a Pokemon that already fulfills that role but just isn't good enough to effectively pull it off, that's pretty much what CAP is for.
To maintain a difference between the two, I really think we should stay with the former and not the latter. Otherwise, I don't really see the point in the EVO project.