Well, despite a disclaimer, Rush basically said that Trump was the only one of the candidates courageous enough to stand up to the media. This may be lost on a lot of folks, mostly the third grade playground bully types, but it is a fact. None of the rest would dare risk this type of move.
Conservatives have been wanting someone with the guts to bitch slap the MSM for decades. Someone (Trump) finally does it, and he gets criticized by supposed conservatives. I think his critics made up their minds before this dustup.
It could be that Trump is ahead of the curve, anticipating his presidency, and already negotiating who will have access to him as president and who will not.