It depends on what the goal for the athlete is. If you want a 16-20 year old to have a high bench press, squat, power clean, 40 yard dash and vertical jump, then BFS is the best system out there.
If you’re goal is to create the best 400m runner, then i have no idea what you should do. But you saying BFS is a garbage program is just not the case. And they claim to have a very low injury rate. The program is designed for 2,3 and 4 sport high school athletes. The idea is: when are those athletes supposed to be improving? Some coaches preach in-season maintenance, but the athlete would never progress because there isn’t enough off season. If you have a 1 sport athlete, perhaps there are better systems. But what about a team of 50 guys who may play 2 or 3 sports?
And you can’t clump all HIT programs into one. Lots of bodybuilders use it, but so do many healthy athletes in several different forms.