Oh, I do agree on the OP thingie. Adding to that, rather than cheap drama, I dislike it more when a show sacrifices itself for the sake of portraying the MC as even more OP. We even had two great examples of awful MCs this season and the past one. MC from Death March and MC from Smartphone. On the other hand, Saitama from OPM is one of the best ways to do an OP MC.
And, yeah, Overlord is a similarly good attempt at an OP MC (attempt cuz the anime is still not finished). Perhaps slightly less meaningful than in OPM but clearly great and the pull of the show; a MC who's an actual overlord.