Them not going a traditional origin route doesn't mean they want touch base on how she got where she is. They just don't want to take forever in getting her out into space and to get familiar with her crew. Probably flashes back to her being drunk off her ass on Earth, Mar-Vell sees something in her, offers her a chance to get her shit together and be under his command.As someone who don't know anything about how Carol got her powers and is interested to know how, this worries me.