What defines optimal load? It sounds impossible to gauge, unless maybe if you're working with a physical therapist. Then, what happens if load more than the optimal level? Is the outcome worse than if you just stuck to RICE? I think these are things that have to be considered for medical protocols.
What makes you think those things haven't been considered?
The comment you replied to said, "the new guidance is..." I took that to mean those things have been considered.
Honestly, I don't think wrestlers -- certainly those from the von Erich era -- are beacons of authority when it comes to sensible recuperation/rehabilitation from injury. Kevin von Erich said it was due to his brother trying to get some food but there are other accounts:
> Moody says Kerry turned up on crutches and was feeling too much pain, so the doctors injected a liquid-type numbing painkiller on his injured foot so he could go on. The match went under 6 minutes with Kerry beating Adias, but according to Moody, even with his foot under a painkiller influence, Kerry still felt a lot of pain, which led to the amputation of his foot.