I get you 100% that the devs are scammers and deserve a red tag if they would have an account here. I would give it right away. But my problem is that I have difficulties in supporting the flag against the independent bounty manager who seems to be hired by the scammers. If I start tagging him as an independent bounty manager I would have to tag all other bounty managers where a bounty turned out to be a KYC-scam. So for supporting the flag I need a very strong proof that the bounty manager is a part of the team and involved in the scam by supporting it.
Maybe that's also the reason why your flag hasn't sufficient support yet because the manager seems to be related to them but not with final proof. I checked his profile and he managed also some other campaigns before.
That's the sad and risky part of being a bounty manager, they are the ones who can only be tagged from the devious activities of the project and he has totally no say or control on it. Sudden allocation changes and KYC requirement is not his job to do but that is what the project devs are asking him to do so. Tagging him won't solve anything and won't make the team to pay the right amount as well as pull out the KYC requirement. Since the bounty manager is the only one linking the project to the forum then he automatically becomes part of the liable party which shouldn't be in the first place, he might even be a victim here.