I can't comment on all of your points, because I don't have any evidence for or against them, but regarding your first point I found this Reddit AMA containing responses from at least a couple of the Urbit devs:

https://www.reddit.com/r/IAmA/comments/4bxf6f/im_curtis_yarv...

They don't seem that antagonistic here. Do you have any evidence that supports your point?