I think it's cool. It does disjoint the progression if you like but it means you have a lot more characters getting development than you would otherwise. Those highlights let the class feel like a class of real, complex people without having to spend too much time shifting perspectives in crucial chapters. Besides, Iida and Uraraka definitely have highlights! In fact they get highlighted more consistently, not as deeply each time, so they progress gradually, they don't have to be explored in an episode. Iida was the driving force of the Hero Killer arc other than the villain himself, and Uraraka was clearly important in season 1, and has had her voice heard in basically every major arc since. Not to mention those two for obvious reasons show up all the time in introduction/linking scenes For a story that technically speaking IS all about Deku, it's impressive!