Personally I think rule changes should only be introduced mid-season for safety reasons. If something gives a team and advantage and it's within the rules, the other teams shouldn't go running to the FIA like cry babies trying to get it banned. It's not the FIA's fault that you didn't come up with this years latest innovation. What have we had recently, Double Defuser, f-duct, Blown defusers etc.. The list goes on and on.
And of course the subject of team orders came up during this race, which are of course legal again. Though perhaps we should have had "Webber is faster than you", rather than "Hold station". After all it was clear Webber had the faster car, as such if he was allowed to overtake Vettel earlier he might have been in a position to capitialise if Alonso made a mistake.