Sure it does, the clear inference is that the horse’s own vet was in regular consultation with the treating vet about the course of treatment this particular horse needed to ensure he passed the jog the next day.
As far as we know it’s speculation on the part of the poster, not fact. Speculation just like the idea that all meds were lumped into one 60cc! syringe, except that assumption beggars the imagination. This assumption absolutely tracks at the upper levels.
What also tracks is that if a particular horse has a history of getting held or spun in FEI jogs, that horse’s management team has a program unique to that horse to ensure it doesn’t happen, most especially at WC. And that program will be shared with the treating vet. (And because this is COTH full of cothness, I must clarify that I have no idea if this horse was ever held or spun, I’m just pointing out what would likely happen if that was the case, as the original poster on that thread stated he was).
What seems off is the owner’s explanation, while the one laid out in the comments seems more consistent with the way things are. Team vets aren’t interested in changing the program unless it results in a positive test. If the program (whatever you may think of the ethical aspect) got that horse to that level, qualified for the team, why would the team vet want to tinker with it? Of course, in speculation land, it could happen… but does it sound right? And maybe it’s something as tragic as a miscommunication or language barrier between her vet and the treating vet over the phone (always a great place to not get it right)?
Nevertheless, even though every shot has some risk of anaphylactic shock, it’s tough (impossible) to square the risk/reward of injectable E-Se and I feel for his connections.