Sanderson and PSU have deep pockets, a reason they get the top wrestlers. I do feel there is questionable training at PSU.
To be fair, Gable had Roy Carver's financial backing back in the day.
You are correct about very deep pockets, however I don't think the training is questionable. They have access to everything in the way of restoration and recovery. And that stuff makes a huge difference. I find as I age I cannot train as hard, it's too much effort outside the gym just to recuperate and stay healthy.
This a very popular fitness influencer, app 10 millions subscribers. He got an an inside look at their facilities and I was amazed. Let's say the varsity athlete or student gym was nothing like what we see now, let alone the team facilities.