We solved how to stop Chris Paul flopping.... actually make contact!
Flagrant doesn't have to mean you tried to hurt, it just means that you did something intentional or stupid to endanger someone else..... jumping in the air and extending your leg out horizontally at head height matches that.
There is no reason for him to logically do that except he didn't care about anyone else's welfare he was going to stop it by any means possible, he should never be allowed to do that and so I think he got off lightly.
He could have broken multiple parts of Cliff's face and then if he is out for a couple of weeks that is 6 games at least, Allen was lucky he didn't get more.
And BTW Bruce should have got time for that, he has definitely got the Kudos for it.
........ And World Peace