Incidentally, it's quite possible that what OAA have said has been taken out of context. I don't know for sure (as I wasn't there), but I can see why someone giving a talk on the FPP might say something along the lines of: "...so they're looking for about 75 candidates, 25 from each FTO", without meaning it quite as literally as that. Perhaps all it was really trying to say was that the candidates will be trained by three FTOs without prejudice.
I mean, if the allocation was split and set in stone, why wouldn't that be outlined on the FPP website? And why would OAA want to advertise the fact that their candidates have a statistical disadvantage? And why would BA say they want the best candidates, when - with that method - they almost certainly wouldn't get the best? It just doesn't make an ounce of sense to me.