Technically, that's just because it's a REALLY large line (6 mons, I think?).
Except for Mr.Tusks, who is special.
But the large number of elephants is kind of a joke in and of itself.
Also, is there an actual limit of Bayomons for this project?
If so, I do understand why you would not want new ones.
Two reasons.
First: Because we are making very little progress on finishing the ones we have. If you were to sprite them, moveset and insert them into the game yourself, that one would become pretty irrelevant. So if you want to do the whole thing, you've got a pretty good chance of getting in, but we don't really have a lot of manpower to spare for these tasks.
Second: Balance, distribution, both of these are big deals. Your mon may just not /fit/ mechanically. Maybe it's type is already over-represented in the areas where it is likely to be found, maybe it does it work with the ones we already have. Normally, fixing this would require altering the mon. You've said its a racoon mon, but we might not /need/ a normal type. So you'd have to find a way to combine it with something else or otherwise give it a niche where it isn't redundant or overpowered, and you'd have to make it INTERESTING on top of it. I did like your idea of tying it into the LCS, because I think it actually fits surprisingly well, and it's not a bad idea, so this isn't the most applicable to your situation - but something like "can only be caught in the elven forests in the first evolution" would make the acquisition mechanics interesting as well.
In your case, it's mostly (1). You said you were at least going to sprite it for us, which gets us at least a quarter of the way there - how did that go?