It could just be rampant speculation generated by one member of Anonymous. Since they have no background in this cult, the speculation might seem plausible to them. But they might be drawing dotted lines where there are no real connections. If Bill Bowen is working with double-agents within Bethel in order to help victims that is a positive thing. To make the leap and say there is a secret pact between the Watchtower and he--that's much too far.
I will believe the allegation, if and when proof is presented.