Consider there are levels to CAs, some have more seniority, full time/part time, have top clients, or may have a better relationship with the GM. Thus some may know more then others, but most don't want to lose a client and will try to say what they can to keep clients happy or say what the GM's have said to tell clients.
It's sales, and I think the longer/better relationship with your CA, the more trust there is. Its corporate that makes the rules and they often change the system. It's just the way it is, and GM's CA's won't know what's coming from corporate.
I really doubt they will produce more, but I do likely see an allocation of stock online and stores will have limited pieces, just not all the popular ones. If they do come in or returns, they will be pulled by CA's quickly for their clients that couldn't preorder or wasn't available during. I think it's going to be hard to get a popular piece without a CA.
Also, I agree 25k is a lot, but in the luxury world its just the way it is. Watches have bigger entry ticket to get popular pieces, its somewhat same with specific cars.