They want to raise a point X, which could in theory be communicated in a persuasive way.
But they can't resist also mentioning their zero-tolerance on unrelated point Y.
I think the Y makes people tend to go WTF, and then dismiss both X and Y.
Every time now, I'm thinking "You don't have to always mention Y!"
On at least a couple occasions, I actually abandoned an argument I was making on some X in a venue, because some FSF person jumped in with a Y. If I didn't know they were a true-believer in Y and at least sympathetic to X, I'd think they were trying to discredit both.
The FSF has some great principles, but a lot of the communications don't seem to be calibrated for me, nor for my understanding of anyone else.