I agree with Jas. Using Unreleased Drought just feels like a sore losers cheap trick to perhaps eventually have it released in the cap metagame later on.
Hell, Capefeather basically admits to it, saying that it's unreleased in the playtest, and whatever happens after that in the CAP metagame isn't important anyway. This totally feels like opening a back door that will be used later on "Heey, Drought is cool, let's release it anyway. It's just the CAP metagame, we had our playtest to learn from already anyway.".
If the Hidden Ability is unreleased, it won't be allowed in the playtest. Beyond that, whether it's released or not does not matter for anything except maybe the CAP metagame. There is no "later on". Period. (You can also hack any ability onto a Pokémon, not just the abilities it has...)
So yes, there
is a later on. It's called the always available metagame that is always open for play... And that you seem to be opening it up for having a Drought-mon thrown into.
Even
if it will remain unreleased for all pokemon generations to come, it's just confusing. I'm assuming that come beginning of Gen 6, all DW abilities will likely be released one way or another (perhaps a single legendary or so excluded, we don't know what Gamefreak will do). And then there's Mollux. This will totally be confusing. I can already see the comments: "What, that DW ability is not released? Why not? Every other DW ability is pretty much released!" And I totally see it happening that we'll give in at some point and release it anyway, just because it's easier than to answer all the questions on why Drought has not been released after all.
So again, it feels like we're using a third
flavor ability to let a massive competitive ability have a very reasonable chance of seeing use in the long run in the CAP metagame. And before you even start with the CAP metagame being unimportant for the general purpose of the creation of one CAP, the CAP metagame is still what is played over the years and remembered. Not the playtest.
I adamantly oppose Drought and hope DK will take in mind the democratic decision of the community that voted against Drought, and will not slate Drought as an option at all. (CAP being a community project and all)
Damp and Color Change seem like fun options, but again, unreleased Color Change is not going to work, just like unreleased Drought is not going to work. And an available Color Change is just a mess mechanics wise, because there is no precedent for what happens to a color change pokemon with dual typing.
NTA seems like the only right choice here.