Who knows that sport (MotoGp/500/Moto2/3/SBK etc..) is completely aware of what Marquez did. It is just a matter of his weekend pace, with race setup, and then analyze the race laptime chart.
It is clear 100% Marquez had the pace to stay with Pedrosa and Lorenzo and infact he started like hell, keeping the pace of both Ped and Lor. Then he did a mistake on exit (wide) and instead fixing and attack again (as every pro biker) he let Lorenzo pass and he decided to engage a fight with Valentino.
Now, usually, if you are faster you just overtake, complete and close your line and go. Sure you can see fight then, thanks to variable braking points, but in this specific case we had 19 overtakes in few laps.
Pattern was very clear with Marquez passing Rossi, going wide without closing his line, let Rossi pass again and then overtake again Rossi etc etc. He never decided to close the fight and go (he had the pace to just pass and race with Pedrosa and Lorenzo), as he did all the time in other races and as he did in the previous race - where, after slowing down Rossi (to push him away from Lorenzo) in a infinite fight, he closed a 2 seconds gap with Lorenzo in a corner and finished first. That's plain pathetic.
Said that, 3 of the Race Directors, admitted Marquez was slowing down Rossi, intentionally; problem is there is not a penalty for this. Rossi just reacted to Marquez plan, moving wide and waiting Marq to slow him down off his line...and that's why the penalty. Race Directors rejected any "kick" story as it's clear Rossi just lose his footboard after Marquez, instead going wide, decided to cross the Rossi line, moving his head and body against the Rossi leg. Leg movements comes AFTER Marquez lose his COG.
Another very sad thing about Marquez is he said to Italian press, before the AUS GP, he was not going to fight with Lorenzo because out for the championship and in fact he decided to fight against Rossi and then pass Lorenzo at the very end, with just a easy peasy overtake.
Rossi did it wrong this time, that's sure, but he was 100% right about the Marquez/Lorenzo plan and we have plenty of evidence now.