There's usually a relationship between being funded by and being critical of something. That may not be true in all cases, but it's true often enough that we ask everyone to disclose it when they speak on something/someone they get money from.

This doesn't even have to be an explicit thing. You don't need to threaten people to cut their funding, they will like the system the way it is set up, because they profit from it being set up that way. You can't be independent from something if you depend on it to pay your bills.