Sounds like an RI to me!
No problem (but get that guy into Q before the rest of the kids pick it up)...
Sounds like this vet has limited exposure to exotics... just enough research to form an opinion, not enough to form a well educated one.
When we got our boy Killer on antibiotics, we didn't do a culture - the vet said that 9 times out of 10, the full-spectrum AB would take care of it, but if he didn't clear up, we could do a culture (which is an additional hefty cost) to pinpoint the problem and put him on specialized ABs. Sounds like your go-between made the right choice with the limited information she had. But with that kind of attitude, I would certainly look into finding an Exotics vet, with more knowledge about BPs.