Like all US buy it yourself type rating centers, they give you the rating but that's it, don't expect that you can operate this aircraft once you leave there, that is up to the airline to train you to their own standards.
The decent instructors they had with Airbus experience must have bailed, so using ex students with no Airbus experience sounds familiar and is not really unusual over there. Also the chances that you will be paired with a low hours guy is quite high, like I said, it isn't an airline type, anyone with a FAA lisence can pay and get the type.
But their aim is to give you the rating in the shortest possible time for a reasonable price and nothing more, and as long as you have it on your license one way or another at the end they achieved what they promised. But your case is unusual at best and from what it sounds like you didn't get the rating, so the steps your taking will work it seems.