Andrews and fleisig both recommend shutting down and cite overuse as the main risk.their science is not 100 percent conclusive but conclusive enough that it has to be considered as the current gold standard. There are plenty of studies on overuse out there. They are not proving it 100 percent but are enough that the burden of evidence has probably shifted to the other side.
There simply currently isn't a good reason to believe that andrews and fleisig have done wrong with their recommendation to shut down.
That doesn't mean there isn't a better protocol out there I actually would prefer a month off and then another month at 50-60 percent intesity but propagating it would not be correct until it has been tested.
Currently 2-3 months off is simply the gold standard even though the evidence is low as there hasnt been anything better being proven yet unfortunately.
But anything else out there is N=1 type of science so the common sense is sticking with Andrews and fleisigs recommendation.