I said the girl in the video did not give a lift that would pass in the meet. Show me where I compared her to someone else?
I did not.
You do not understand the difference between strength and ROM. (and I did not think I had to point out that the lift had to conform to certain standards - otherwise known as rules, since we are discussing powerlifting - to count.)
Powerlifting has rules, and assuming a lift conforms to them, it is a good lift. However it gets done. Rather like no one will complain about the stride length of a runner assuming he crosses the finish line first, except possible his coach. A half squat will not pass any more than - get ready for it - only going half way down on the bench. This is why your half squat analogy fails. A squat must break parallel, a bench must touch and pause on the chest.
Your concern is range of motion, which you confuse with strength. Again, strength is measured by 1RM (that is both the accepted definition in both sport and research). Work, however, is something else, and someone shoving the same weight farther is doing more work. That also is not in dispute, even though you - and only you - keep confusing the two.
Let me give you an example:
Look how short his ROM is. He is only doing half the ROM of others in his weight class. Yet it still counts, and no one measures how far he shoved the bar because his lift conformed to standards.