than they should, actually, add a rule that an obviously slower rider, struggling to keep in front of a possible champion, with no chance at all to win the championship, has to be called back with a blue flag, if his own misslead ego stands in the way of good sportmanship and rational thinking, as boring as this might be. sorry, but to say marquez did nothing wrong by the way he behaved...if they really need rules to make him clear that it is not his decision who deserves to win, it will soon be boring as formula 1.
again, he did nothing wrong going strictly by the rules, but it´s also not up to him to take influence in a fight that is not his fight. and once more again:
gentlemens agreement (im 100% sure this also exists in motogp). if you have no chance to win the title, than at one point you have to get the .... out off the way of the ones who do, or at least be an obstacle for both...