Yeah I haven't either. I was referring to the discussion regarding Dan John (apparently) telling people they ought to be able to do a 2-minute overhead squat hold. I realize there is context there, but, as the discussion unfolded, that context was revealed. Also, not everyone will interpret things that way. I do see some stuff online and on social media about about "not loading a movement until the movement is 'perfect.'" Meanwhile, there are countless elite athletes who wouldn't pass those "tests."
Same with posture. Usain Bolt has scoliosis, Michael Phelps has kyphosis... Same with the "wide foot obsession." I am 100% on board with the idea that foot health has a HUGE impact on overall health, and. . .Having the ability to toe-spread, and the ability to move into and out of pronation seem to be key to improved movement, and....I have seen some photos of the feet of pro athletes who's feet are far from that idealized "optimal."
As with many other topics here, I think the key is "if you are making progress without pain, carry on." The short of it is that you have to start somewhere, and if you wait until your form is "perfect" to start really training, you won't get far.