If he didn't have his classic moves, people would be like "why would they remove his iconic moves!? That's what makes Reptile, Reptile!"
And honestly, iconic characters should have their iconic specials and moves transfer to other fighters, it's a core part of what makes a character awesome and unique. I don't remember any complaints about Raiden, Scorpion, Kitana Sub-Zero, Kano etc having some of the same moves from previous games at least not on the large scale Reptile has these complaints for MKX so I dunno why it's suddenly unacceptable for Reptile.
I'm glad Reptile is in, but I honesty wasn't blow away by the trailer like I was by some other characters, but that's okay, every character can't do that for everyone. Most of the Reptile mains/fans seem happy so that's awesome.
I enjoyed the trailer despite that and like how weirdly he moves, the less human like he moves, the better in my opinion. His throw is my favorite of the ones I've seen thus far, tied with Raiden's throw in terms of awesomeness.