[Galador]

Does anyone suppose there is a real reason why GekiChopper isn't considered a Sixth Ranger for Gekiranger?

My assumption is that Rio & Mele's redemption arc was the same as AbareKiller (who is a Sixth) and so if AbareKiller could be called a Sixth then Rio & Mele can be a joint Sixth duo for the Gekirangers. But since they weren't rangers they got shuffled into the Bangai Hero category with fellow de facto Sixths Signalman and Black Knight.

A common excuse I've heard is this "divide by five" for Gokai Silver Gold Mode (or indeed the Extra Rangers and Bangai Heroes), but I'm not certain about it and I don't know if there's any substance to this claim.

Like neither Abaranger, Go-Busters or Gekiranger have six rangers in their roster, but AbareKiller and Beet & Stag Buster are Sixths while GekiChopper isn't, but then Gekiranger is the only one of the three to have other outlier heroes beyond the five rangers.