Hearing anything doesn't make it true.
For some 49'ers, nothing except a legal battle to the end would suffice.
For other 49'ers the risk of losing what they had left in costs was too great and a compromise was wanted.
The AOA had to work with what people were prepared to pay and what was wanted. If they want to be represented and have at least a chance of affecting their working conditions they can join the AOA. The CPU can't help you there.
It seems to me that dividing those who've supported the 49'ers for so long is not a particularly clever thing to do.