But it's - to me - just not very... Fallout (at all). It's, imo, too much of a fantasy element in a game which still tries to be more "from this world" (so to speak). If the philosophy of humanity and its deficiencies is explored through their interaction with animals and having the animals voice out their concerns in the same language, I think is something that would reach absurd levels of parody. "What does the cattle, or game, think about how it's being treated by humans; and how does it react now that it can speak and think?" It's not even about the species of animals, but the whole general idea. It's much like how the whole feel of Fallout would've changed, like R. Scott Campbell said about the creation and cut down of the "watership down meets ewoks" talking racoons and bunnies (etc) from Fallout 1.
Guess we have different ideas on what fits in Fallout then.
I don't think it's fantasy at all to have mutated animals that have become able to speak.
(At least no more so than having hulk's and civilized and uncivilized zombies in the game)
And I think there is a difference between having the S'Lanter and having the Talking Deathclaws or Intelligent Mirelurks.
I never thought in Fallout 2 or Tactics "Man, this is just completely ridiculous and feels way too off and fantasy-like".
I suppose it's about preference, some people absolutely loathe energy weapons for being too "pew pew" or "Halo".
I don't think it's a bad concept though, it was done pretty well in Fallout 2, could be done pretty well again.
I don't want to be able to play as one of them though, not yet anyway.