It’s a lot more than just the # of pushups etc. It’s a lot of other stress and phobia testing. Fear of heights, claustrophobia etc to ANY degree means a drop from BUD/S. BUD/S trainees (I was one) swim laps in a pool with feet tied together and hands tied behind the back. And get stuff off the bottom of the deepend with their teeth, while so bound. That’s just one example in one area. You can be an olympic athlete. That does NOT mean you can do all of the many many stress and phobia tests in every area you can imagine.
Id imagine swimming while hogtied would wash out a considerable percentage, as would all the other deliberate phobia enhanced training requirements...