One was fair and in the rules - and there was a reaction (albeit from 1 person) that he shouldn’t have done it. Why not ?
Same approach here , Ball is loose and bounching 12 to 14 inches off the ground, Rose is falling back and try’s to get something on the ball to get it goal bound, or passed the keeper. Why not go for it - hes minimum momentum going into the challenge.
As i said , keeper didn’t go down in a heap straight away - he waited for the ball to go out and then went down , in keeping with his shitty attitude all game of time wasting from when arsenal were 1 up.
Players that go in to do the keeper in that situation will toll around and hold there own leg to try and deflect from it - Rose just sat on the ground. Its a contact sport at the end of the day