Given that we're seeing some really effective use of C3P0 in the HAAT and HSTR raids, and historically that has tended to end up with EA "fixing" (i.e. nerfing even though chars were doing what the te...
Easy fix, leave it alone. It's one phase in one raid. Finn's zeta has been around for what? Two years now? You built a character in C3P0 with Resistance synergy knowing full well what Finn's leader ability is. Surely any testing at all would have shown these loops that can be created in the raids with him.