Heaven and earth will be moved to keep it private no matter how minimal or awful it is. We will likely never see it unless someone else happened to be there on that day also videoing and decides to share their footage. With all the Rabid Animal Rights folks out there, even minimal tapping that led to an exaggerated explosion on the horse’s part would be dangerous for the sport and for CDJ to put out publicly.
Is the timing terrible and suspect? Absolutely, but I don’t think we can discount them being concerned at the time. Did they know what to do at the time? Possibly not. Did they realize what they were witnessing at that time was wrong? Maybe not. Did they possibly sign a non-disclosure about videoing that they may have thought was binding? Maybe.
Look at how long it took for anything on Parra to be meaningfully brought forward.