No, I think this is unfair. I "like" most Twitter replies that make me think, even if I personally don't like it. Unless pg has said something, we can't infer any intent from a button.

Well, you can, of course. But I wouldn't bet money you're right.

It'd be interesting to know what pg thinks, since he vouched for Amjad in the first place. But the whole "X liked Y, so X endorses Z" is highly suspect logic, to put it mildly.