You are not an elite lifter nor are you a recognised coach and so we should take your opinion/practice as fact? Rippetoe>Derwyddon so listen to what he says :-
Mark Rippetoe: Spotting the Bench Press Pt.1 youtube.com/watch?v=Mygns0H6Ok4
Mark Rippetoe: Spotting the Bench Press Pt.2 youtube.com/watch?v=GmM9yxbYLc0
If you have any valid training advice from a recognised coach who says different (maybe you?) share it so we can see.
Dude, take a pill. You started this thread with a story lifted from another discussion, why are you so defensive? Stop challenging others bona fides, especially when you haven't established your own. Everyone isn't going to agree with you, that's no reason to take offense. Unless of course, you are the subject of the original story and you don't want others to repeat your experience.