@StraberryMilk Poor Tamaki Kotatsu she gets left behind during training. I'm sure she has some combat prowess, I guess the author intends to leave her as a fan service character. Maki Oze could have probably went too, unless the training was more specific to 3rd gen.
The start with them calling each other stupid and getting told to pay attention. Lol
I think it’s more to do with these two working as a pair and likely being the ones who will face off against the enemy again. And also Tamaki had training worthy of her being in the 1st Brigade so that might also be a factor.