Perhaps, but I won't write Zess off just yet. Zess is good, but also a team player. This guy may be good as a lone wolf to do his own thing supporting the main group, but I wonder how well he can do that. This latest fight, as well as their mock battle before showed that even Girghe can't escape unscathed when faced with enough opponents of good calibre.
But yeah, that guy's godly. God forbid this turns too far in the Gundam direction. Mech specialisation, offensive ability and control just jumped a couple of levels this ep.