That’s my understanding as well.
In addition to that claim about the unreleased videos (which apparently related to a horse flipping over and hitting its head and getting a serious cut in the process, and were part of the evidence submitted to USEF and FEI), there are multiple comments on Facebook from people who claim that the SO aided/abetted covering up the abuse by providing Dex so that the inflamed appearance of severe whip welts was mitigated.
I have seen this comment/defense of the SO related to him not possibly having been present because of 9-5 working hours pop up more than once. I find that strange. Many large animal vets work various hours, and respond to emergencies on nights and weekends. Also, it is well known that the SO has ridden with AM for years, and the SO is present in the barn during his off hours.
I find this defense citing the SO’s working hours unpersuasive.