Olympic team “minor injuries” to horses are almost never explained. Rightly or wrongly. I would not read anything into it. I would not second-guess Maya - very probably this was not her call.
IMO “acute” means “we’re not going so don’t hassle me about how bad it wasn’t”. That would be for the team selection process, as well as Maya as an individual.
[QUOTE=blackwly;8744101]
Or it is essentially nothing (some minor ultrasound finding) that they are using to replace him for a horse with better current form. The bottom line: you aren’t on the team until you’re jogging down the strip. And you’re not the traveling alternate until you’re on the plane. All of these horses are going to have little imperfections…it’s a matter of how hard you look.
My theory for the day: BFM won’t go. Donner is a good replacement for him as XC trailblazer.
The team has all the right in the world to keep shuffling until the last minute to get the best combos there at the moment it counts. My theory is that this is what happens and what the public hears is very carefully crafted. But just a theory.[/QUOTE]
I would love it if Donner was one of the Olympic team. 
Historically, at least some of the US selectors are hyper-concerned about potential lameness. Obsessively. This was a heavy influence on the final London team selection. And on the WEG prep afterward, to the point that it interfered with some of the horse/rider preparation timeline for 2014 WEG. (Tate, in particular.)
Donner may have been in better form at Great Meadow, but I wonder if it will count against him that he is older and has more miles than BFM, so theoretically carries more soundness jeopardies that could crop up at the worst time - reasonably or not.
Tate is not on the form he was 4 years ago. And Tate has a history of being under the selector’s microscope for real/imagined soundness issues. I don’t see him making a plane trip to Rio.
When guessing at selection for the US eventing team, over and above readiness and performance, one must factor in that relentless concern for what could/might go wrong physically. To win bets on who is picked and who not, that is. 
Which he did not do at Great Meadow. And it was a curious time not to do it. I wonder what was going on with BFM & Boyd, the partnership.

Hopefully Great Meadow was the shake-out / wake-up that everyone needed before The Really Big Show.