User blog comment:CureHibiki/Pretty Cure Plus and Minus Round 3: BLUE PROMENADE/@comment-31772797-20181230033734/@comment-37117761-20181230195433

I saw one thread in which someone complained about how pushy Marine was and how her fashion antics took away from the development of other characters. For example, we didn't get to see Tsubomi in the gardening club until halfway through the show because Erika roped her into doing things for her fashion club.

I don't agree with that opinion (Erika's pushiness is a character flaw that she gradually overcomes, and that's one of the things I like about her), but that may be why Cure Marine isn't very popular.