From what I've seen, PD genuinely do their best, but are understaffed and dealing with fan expectations and Sony's promises. Kaz runs his mouth occasionally, but because he's so excited about the work they're doing. That's obviously not the whole thing, and I understand the frustration some here are displaying (Hell, I feel it too sometimes), but PD are pretty much just a group of people doing what they love. They'll listen to us to a degree, but it's their work, and it'll go the way they want it to as long as they can.
Sorry for how messy this is, my mind's all over the place and I'm trying to watch F1 as I'm typing, but I think it makes enough sense.