He has atrocious defensive stats though for someone who's supposedly a DM. Compare him with Case, Caicedo and Rice and you see a picture of someone who's more of a playmaker but without a solid defensive side to his game.
Maybe as a box-to-box he'd be better? But then he doesn't really offer much on the attacking 3rd either. Compare him with our current 8s, Fred and Eriksen.
Fred is an unreliable passer but much more effective in both defending and popping up with goal or assists. Eriksen is clearly a better passer than both and more of an AM based on his final 3rd contribution. Yet Amrabat still doesn't deliver much more in terms of defensive work rate than Eriksen, even though he offers nothing on the final 3rd. He seemingly just floats around in midfield picking passes, but without defending or popping up with contributions in the final 3rd enough.
I think Amrabat would get found out in the EPL and become a bit of a passenger.