Quite nice, except for the small K-ON moment. Even if meant humorously, it is a bit tiring that people seem to completely miss the message of the show. Through Azunyan, it is shown that the musical accomplishments of the band are besides the point. Then people complain that the band does not accomplish/improve much...
4:46 "Also, because the Kessoku band members are extremely passionate they make legit progress as a band, UNLIKE SOME OTHER KIND OF BAND" (showing Nijika looking less than favourably at a picture of the Keion-bu band).
I think the video could do without that part, especially given it is just one line that does nothing but detract from the rest of the piece. Otherwise good editing, explanation and motivation as to why the Bocchi the Rock characters form a fitting analogy to inflammation cells.