Okay I admit that some people, including me, need more Maki-like characters in yuri manga. A guy but with a solid guts to be a wingman for the yuri couples. But, this one seems and feels really off because of the point of view the author takes.
I mean, whether Maki, Otaku-kun, or Mizushima in their respective series are not the axis of the story even though they push the girls to develop their feelings and relationship to the max. This one is different. Somehow, I cannot support his deeds and motivation. His ability is like mocking the "God's POV" the yuri fans usually use to read/watch yuri contents instead of providing the readers with it. Even if the author wants to give us a medium for us to self projecting ourselves by using the eyes of the MC's, it doesnt work at all, at least for me.
Also, the fanservices are not necessary. Not surprised, tho. The author did that ecchi series with female teachers before.