I didn't watch it but all the competitors at least on the men's side look mediocre, none of the male competitors sound remotely better than mid tier. I was reading bleacher report and bloodyelbow on how the fighters went is where I got my info.
Your research is pretty dubious.
Holdsworth is a BJJ black belt with a wrestling background, Chris Beal is an extremely athletic boxer/wrestler with a wrestling background.
Bollinger is solid.
Gutierrez had a well publicized amateur background and was listed on BE as a top 3 BW prospect 4 fights into his pro career.
And Josh Hill is a pretty good athlete and top control wrestler....probably not top 10 though.
Better guys than the usual shit you see on TUF.