Saban is trying to do two things: Recapture the corny magic of MMPR and adapt Shinkenger, into one season. IMO, the writers are doing it, well, but in MMPR feel season obviously doesn't work for the majority of the older fans anymore, especially when it "tarnishes" what Shinkenger was.
To me, it is a homage to Shinkenger and MMPR and I enjoy it as such. And to be honest, I enjoyed episode 6 and 5 more so than their Shinkenger counterpart. Hopefully, the tone of the show will get darker as we go deeper into the season, like MMPR became decent over the course of three seasons so then, it is able to capture the tone of Shinkenger better. OMFG, the first season of MMPR is a nightmare to sit through, now.
I love Shinkenger but I easily can differentiate Samurai from it. I guess I have become easy going like that.
To make the show more popular among older fans, Saban should have saved his MMPR remake for Goseiger and went all out with Shinkenger, but who knows if he gives a fig about the older fans. But what do I know? I am an adult and I am enjoying the samurai ride, with the bumps in the road not bothering me too much.