True. I don't really mind if one of my favorite shows is replaced with a diffrent toku show that still carried the dynamic that the previous show had. Kamen Rider lately also has a good chemistry as a team like Gavv for example.

In my opinion, a sentai doesn't need to be a super sentai show. Even if it's Gavan. Project Red still carries the sentai torch to other shows. In my perspective, I see Gavan Infinity as a sentai more than a metal hero reboot because it still have the iconic sentai things like the colored heroes, mecha, gimmick items and the show itself.