Ugh! Gundam Build fighters WHY!?! you were doing so well...
Nooooooo!
Whatever it is minor... Have your "I just wanted to be as good as the boys" female character... As long as she is presented well I am sure that aspect of her personality will be downplayed. I do find it interesting that she is still the weak link on the team.
But that is to be expected. A Gundam such as hers has never really done well in the tournaments. As well she has no real special trait or attribute for the moment. Being less skilled in both combat and build ability.
Which actually could make her a lot more interesting down the road if done right. Afterall she isn't based on having broken ability or a broken machine.
So honestly I could see this development going quite well. All they have to do is treat her like a contributing member of the team and a character in her own right able to make decisions for herself... and BOOM! Heck in many ways I have to respect their decision for not just having Yuuma make her Gundam.
I am not going to let this get me down. Sure these very same traits in a lesser anime would be the reason why "She is a girl, and as a girl she isn't meant for the rough world of MEN!!!" (Honestly Damn you Marchen Awakens Romance! Princess Snow was my favorite character)... but this is season two BABY! anything can happen!