Weirdly hilarious, kind of wonder if this ever released in English would critics review panned it due to the cover showing one thing and the contents showing another thing?
Well, it's supposed to be a parody of the typical school life yuri setting. Clearly, the cover is supposed to fool you. Art presents it as so, only until you are a few pages into the manga... Specially with the "elegant" and "graceful" moments with senpai, where the content is twisted around to the other side of the spectrum: nonsensical comedy.
But yea, critics and reviewers aren't the sharpest tool in the shed...
I would not trust their judgement about literature nor art, nor the presentation of either of them... (I avoid reading reviews for those obvious reasons), tagging this as spoiler, don't really want to go too off-topic here