What I'm saying is that Dunsparce has better BST than anything at that point because they're yet to evolve. BST is a pretty trivial factor to account into our tiering because it's the allocation of the stats and not the sum that matters. e.g. Scrafty an Darmanitan don't exactly have the highest BST, but they have the stats that really matter and help them function really well, and their complete lack of any special attack isn't a problem when they're fine without (yet their BST suffers from it).
Sunkern is better than Bottom because after its evolution it is a slow, defenceless (but nevertheless) grass-type nuke, one that actually learns its nuke faster than Petilil and Roselia. Its other shortcomings should keep it out of going higher than Mid (at best), though, and Roselia and Petilil are just so much better (and the game designers were wise enough to leave out the Budew stage entirely). That's not what you said at all, since you were insinuating Sunkern's earlygame is somehow better than that of a Pokemon with better bases and a normal-type STAB.
Azumarill and Ampharos aren't necessarily assumed to be play, and even if you go through the whole list of potential candidates you probably won't find more than a dozen (most have superior options via TM without requiring any shards). I still don't see why you would say that they're top priority for these moves compared to Watchdog. Don't you choose the one Pokemon who makes the best use of them, or who is having a hard time without them? 75 BP isn't much, but it's better than an elemental fang (Stoutland's alternative, though it's still clearly superior to Watchdog in most ways).
Also, using Elekid is good indication that Low Kick is mostly a horrid move. Weak early on and even the heaviest Pokemon are either immune to it (Golurk) or need more than one to take out anyway (sturdy rocks). Only useful against Cryogonal I believe and not worth the moveslot (let alone the investment of your 10 red shards unless you have absolutely no other use for them), since you can just KO that one with any decent physical STAB.