Well, here's my review how about yours?
Video 1: GSX750
His form was horrible he was looking out over the view instead of through the turn, wasn't leaning at all, and just the tiny bit of throttle he gave at the exit, combined with the always questionable quality of the center of the lane and poor position on the bike was enough to break the rear.
2nd video: Kawa?
Think everyone can see he poked his head up like a gopher and jabbed the brakes, might as well have thrown the bike down and jumped off. The cop moved up to protect him from someone comming the other direction. He might have gotten a ticket for obstructing traffic or something (if the cop was imo a jerk, kick the guy when he's down) He wasn't going that fast, the yellow speed limit on most turns is a suggested speed limit not the posted speed limit.
3rd Video: R6 into the guardrail
Guy was still on the brakes and off the throttle when he tipped the bike in "Get all your braking done before you start your turn-in."
-Keith Codes Twist of the Wrist Vol I & II
Front forks get over compressed, rear gets unweights and air lacks traction. He also paniced a bit turned the front tire into the turn after he had felt as if he had leaned over to far.
4th video: R6 rides it into the guardrail
Classic example of target fixation. Sounds like he missed first and hit neutral. Double whammy. Missing first when riding hard is in a sharp corner tough to deal with. Last trip up the 3-Sisters I missed a down-shift from second to first in a sharp as hell 15mph blind down hill off chamber corner, went a bit over the double yellow before I was comfortable standing it up enough to pop it into first and re-assert the throttle and get around the corner. Other option was to try to hold the lean through the turn, but not being able to control the throttle and that likely would have ended up like the previous video.
5th Video: R1 save
Guy got too brave with the throttle and got lucky on the recovery.
6th Video: R1 lowside
Guy got too brave with the throttle and got unlucky on the recovery.
7th Video: Busa
Wish I could ride that that jeez. Busa's are heavy and long, seeing it move like that is like watching a shark in water. I don't understand how some guys can ride like that and others just can't, even though thier form and throttle control seems just as good. I think on the edge like that it's 80% skill 20% pure luck.