These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Logic: This was listed on the trivia page, but here it is as well. It makes so much sense when you think about it that Mugihito did both Grosser and Inukai's voices in the series, because Inukai built Grosser in his own image. The fact that he couldn't escape from him, because he was like him and thought like him puts a lot of thought. He also took his image to trick Haruna to drag her into his own goal, because she was already trusting him in the first place.
Growing the Beard: The first season was good, but the second was a improvement for those who didn't like the first.