Pressure alone doesn't win you rounds. Again look at Canelos face, it's mark free GGG's is more puffy infact(look at that left cheek ffs)... against the biggest puncher and you're telling me he is 4 rounds up? Rubbish sorry GGG fans.
I agree Canelo up by 8 rounds is bullshit though, don't get how they scored it that way.
In short a draw is not that far fetched, GGG took the middle of the fight start and end was Canelo's.