Morata's was clear penalty, by the book. Come on now guys.
Morata touches the ball first and gets fouled. Perin did get a touch AFTER Morata, but the ball was still there in the box (meaning that if he wasn't fouled, Morata had a chance to get the ball and shoot).
Now, one might argue if he was really gonna get the ball, but since he was fouled, we will never know. And that's why it's a penalty and it will be called for any and against any team 10 times out of 10.