I forget who said ' The difference between a good musician and a bad one, is that the bad one fails to convey his emotions to the listener'. Yes, the second guy has some level of technical ability which must have been all the more difficult to achieve given his disability. However, I expect that he, like a lot of disabled people, wouldn't want people to think that what he does is 'good for a disabled guy' but would rather be judged on a level with everyone else. When I review something I don't personally like, I wouldn't slam it because it's not to my taste but would rather look at whether it works in achieving what it was trying to do. I don't think that second guy has got there whereas the first has. I'm not sure that has anything to do with guy 2's disability - I suspect his playing would still be quite similar had he got two arms and hands.
Tone, I have Michael Angelo's 'Hot Licks' instructional video which I keep for its comedy value. It's a thing of wonder to me that this guy, having achieved blisteringly fast widdling right-handedly, couldn't think of anything better to do with his time other than learn to do
the same thing left-handed...