Actually the AOA provides a service I pay for. Any member is well within their rights to complain WITHOUT offering a suggestion or alternative in the same way I don't expect to offer a solution to my builder for an issue on the house or provide a solution to my mechanic for the knocking sound in my car.
Yes the GC members do it for free etc etc and that's great but they willingly signed up knowing what they were getting into. They provide a customer service to customers (that's us), and as customers we have a right to question or ask about any part of the service they are providing to us. How those people are getting remunerated or not shouldn't matter.