Nobody is disputing what Marquez did. Whether or not he was playing with Rossi isn't even a question as there is only one answer. Yes!
What isn't cut and dry is what happened next.
What I saw was Rossi shut the throttle and stand the bike up mid corner.
He even admitted to doing it so saying Marquez turned into him doesn't really stand up.
He was already committed to the corner.
If Rossi had slammed on the brakes on the straight in order to brake check the Spaniard would that be ok?
Rossi's job is to race. The race directors job is to dish out the justice.
Maybe Rossi would do well to remember that the next time he feels like laying down the law.