This might be a valid point, but weren't there serious weather issues? Not sure if that's been taken into account.
That being said, the 11th Commandment that was ridiculed by Trump supporters existed for good reason. One of the main ones was so that the party could unify around the eventual nominee after the convention. It was always fine to have harsh disagreements on matters of policy. What was never fine were personal insults. But Trump's penchant for making personal and degrading insults against other Republicans has earned him a lot of enemies within the GOP - to the detriment of the GOP and conservatism.
Cruz aside, it is both normal and completely predictable that people will hold grudges when you insult them personally, and will work to see you defeated. Or at a minimum, not defend you if you are unfairly attacked. The oddest thing about this is that Trump himself holds massive grudges against anyone he believes has not shown him the respect he believes he is due, or who crosses him in any respect. And to make it even worse, Trump is hypersensitive to any criticism or perceived disrespect.
So what is really going on is that Trump and his supporters demand that a different set of rules apply to him than to anyone else. He is free to insult personally and degrade anyone he wishes, while they are obligated to support him and not seek revenge. But if anyone tweaks his hypersensitive ego, it's game on!
Screw that. He should reap what he has sown.