Your qualified why cause you train people, I was a personal trainer for years and years and stopped because I was ashamed, I couldn't look at myself charging people 50 dollars for switching the pin on the weight machines for 45 minutes.
oh no, you just made yourself look like an idiot, yes I get your point, he is training and being spotted properly and yes I get your point that you would not have done it differently and yes I get it that this is not powerlifting but did he do 515 for 3 reps?, no he did not.
I'm qualified because about 16 years ago I had made the decision that I wanted to go beyond just being a "personal trainer" and perused being a strength coach for athletes and teams because the education was waaaaaaaaaaaaaay beyond that of just a personal trainer. That was around the time that strength and conditioning was really evolving as a science. I read and still read almost everything I can and set aside about an hour a day to read, watch DVD's, listen to podcasts, etc. Since then I spend one day per week at USC during the off season (since 2003) with their strength coaches and assisting in a few of the USC strength clinics since the Pete Carroll days up until Kiffen got fired. Chris Carlise was Pete Carrolls S&C coach from the time Carroll took over in 2001 and have learned a great deal from him and we still communicate on a fairly regular basis. As you know, they're going to the Superbowl
I also have spent time with Mike Boyle, Tommy Moffitt (LSU), Sal Alosi (formerly NY Jets now UCLA) and Robert DosRemedios (Coach Dos, College of the Canyons) and Aaron Ausmus.
I personally have 4 CIF (Our state championship) rings, two for wrestling, two for football the most recent being last month for football. and 5 league championships (wrestling, football, baseball). This doesn't include the NFL combine preps, HS combines, college combine and a couple of pro day preps, UFC fighters and currently training two fighters for their belts, one for KSW one for Bellator.
My personal gym consists of 90% athletes. Just because your a trainer in a gym doesn't mean you can effectively train an athlete but the strength coach can train just about everyone.