I haven't watched any panels from Vancon, but Jensen has an enormous amount of respect for Misha and what he does. He also routinely pokes fun at Misha (as friends do). I haven't even watched the panel, and I can say with confidence that Jensen would never "mock" Gishwhes. Maybe he poked fun, maybe he lamented what Misha puts him through in good fun, but I don't think he would ever genuinely mock or be condescending about something so important to Misha. That sounds like anti talk to me.
I completely agree. It was either made up, twisted, or blown way out of proportion.
Jensen is nothing but awestruck by all the good things that Misha does – GISHWHES included.