I guess she thinks it's less maintenance
But still she looks good with it I think, and with medium length hair too, I was never keen on her look with long, straight hair. I think she's like Halle in a sense, they pull off shorter or mid length hair better then long... but then again I've only seen Halle with long but curly weave so I don't know for sure, long straight might suit her. But either way, they've both got good features that looks good independently so it helps.