Cause Carol Danvers being the top Marvel Women is recent. And its more caused by Marvel not having the House of X for Movies. The X-men provided all of Marvels most Iconic Superheroine. It wasn't until the MCU and Bendis redoing the Avengers that the Avengers became more prominent and while some of the dudes were ready made to move into prime positions. The Women of the Avengers weren't really. So its more of a catchup. Carol will be pushed because she Has Marvel in her title. Even though I think Kamala Khan has kinda surpassed her.