They could be better as well, I honestly don't know as I didn't watch the tryouts.
It's an uphill battle and it does help when you're somebody's kid/brother, especially somebody who is known for having a good work ethic or being a good player. And it's a lot easier to walk on and make it when you are already on their radar with film from High School & a name that is recognizable.
Lastly, to think that any of these guys will actually see PT and make a difference anyways is a pretty far stretch, IMO.