They had potential, they were just underused.
You are kidding, right? We enter in the movie withno knwledge about the MCU Krees and we leave with even less knowledge. They didn’t even cared enough to characterise Carol’s crew, let alone the Kree societhy.
Except that the twist has so many plotwholes to tge point that makes us believe that the writers were taking notes from Ryan Johnson.
I think you will really like my next project.