Maybe I'm too old-school when I say this but with Mineccraft characters, I've always preferred the stiffer movements rather than what fan-animations and Story Mode went for. Even though I know this is based on the official trailers where it allows Steve and Alex to get a bit more fluidity and expressiveness out of them while still trying to retain the blockier aesthetic, the simpler rigid style is just really charming and it gave more identity to Minecraft.
It's a less is more type situation for me.