A lightning bolt on a black swimsuit type outfit is just far too generic, no matter how striking or appealing it can look (I didn't think it was either, mind you). If you're looking to raise a profile and take a character to A leagues, you need to be able to see everything you need to know about that character in their design alone. The starburst symbol (far more unique to her in terms of a brand than a lightning bolt) touches on her past and the legacy of Captain Marvel, the buttoned boots and gloves alone with the double gold stripe motif accents her military past and her "rank" as much as her name itself. And thank God she's Captain Marvel now and not Ms. Marvel, which honestly hampered her legitimacy. Women can be captains too.