Re: Old news
I would imagine if the RNC had been hacked you'd see even worse stuff regarding Trump, and perhaps with Cruz as well had there still been a credible non-Trump alternative. The parties have their favorites, those who are seen as having "paid their dues" and are "owed" a shot at the White House.
The number of times that an outsider who isn't favored by the party wins the nomination (like Carter in '76 and Reagan in '80) is greatly outweighed by the times when the party gets what they want despite the 10% or so of the electorate in the middle who determines the eventual winner being less than enthused (Mondale in '84, Dole in '96)