This is from the description from the video , apparently from the guy himself...
""For those who think I have no business trying to bench 305lbs, here's a vid of me getting 295lbs a few minutes before this accident.
I was very lucky: no broken bones, no internal injuries, just a badly bruised chest. I took two weeks off from bench pressing, but I was squatting two days after this accident.
It was NOT the spotter's fault, it was my fault. I was using a dangerous grip. I used the thumbs-under grip for many years with never so much as a "close call". Needless to mention, I have changed my grip to wrapping my thumbs. But I'll still get tons of comments about my grip from all the illiterate "experts" out there. Probably 1% of the commenters will read this.""