The 'grainy' point you bring up is definitely perplexing, isn't it?
As a skeptic I'm in a bad place... because as skeptical as I am there ain't a whole lot I'd like more to be true... obviously a cure for diseases leads my list.
You probably remember me posting a LONG time ago that even though a skeptic I also am fascinated with the topic and read quite a bit about it.... though not nearly as much believers read.
I just don't have much confidence in any of the authors regarding this topic.
As for using UFO released photos/video yes, thinking the Military is using it to decoy something they're up too ain't very hard to believe at all, is it?