" squelch comedians who go after Trump"

For all practical purposes everyone in the U.S. media goes after Trump. There are almost no defenders of Trump. It is so pervasive that the situation is beyond Trump pressuring anyone. 
As far as the gays being offended and complaining, it wasn't that they found it in bad taste.
It's seen as homophobic by implying that they are less than others.

This article is nothing more than a Canadian conspiracy theory with no validity.