First, I'm not from that "side" which you think I am. Second, I
do assume intent and here it's beyond reasonable doubt that this is about pushing your agenda. I do not dispute that some of these people genuinely believe that they are doing good - either they got brainwashed by others, or they've successfully brainwashed themselves. (In fact, many of us, including me, brainwashed ourself with various things on occasions. It's fairly common)
I won't go over the entire document, but it's pretty telling how they've refused to commit to "no politics" as a rule - because they want to promote theirs! The problem wasn't that sidr linked to politics, but that he linked to the wrong type. (I checked it out and I definitely don't agree with most of it. But that doesn't mean I can't defend his right to speak)