OK, fine--but, that's not what you (rather ignorantly) said. What you said was:
[the second sentence of which I quoted].
So, you "find" PT failures be symptomatic of bigger issues, and have "very rarely" seen people fail who are otherwise squared away. I submit that you're basing your "findings" on a rather small sample size. We are showing some screwed up people the door with a PT failure as the mechanism to do so, no doubt--but we're also depriving ourselves of some talented folks who, for whatever reason, can't pass the PT test. Have you honestly never met anyone who's got his shit together, can max the pushups & situps without breaking a sweat and can do the run in a decent time... but whose waist is >39" and therefore an auto-fail...? Call me back when you know some more people over 30....