I'm not sure about the one on Cuadrado. What Reina did is what any goalkeeper would have done. He went for the ball and managed to touch it, the collision was inevitable. For a gk there's isn't much to be done about that, the player usually jumps and gets out of the way.
About the one on Dybala. $#@! yes, that was a penalty and probably a red card. Could have easily broken his leg.