Taking advantage of the rules in my opinion is ok, assuming it is possible to do so.
Sometimes it's the smart thing to do. Like I remember once how Bubba got a free drop from bush, after an errant drive in Waste Management Phoenix Open.
Maybe Bubba is smarter than what meets the eye.
I suppose if Phil had felt serious about the ruling, could he have lodged a claim on the ruling?
Did Mickelson allege that Rory was not in the correct order of play, or what...