it's the same dynamic that the original Ant-Man and Wasp had; just reversed. and it wouldn't make much sense for the less experienced of the two to be the 'straight-man.' Hope is written the way she is to highlight her experience and to establish that she's not the comic book character/Janet. all that said, i think people overstate her humorlessness. there were several jokes made at Scott's expense. and it was usually Hope making them. and she seemed to genuinely enjoy being an action hero. her action scenes took up most of the movie trailer. what more do you want?