Yea GAS feels like ideal QA counter. The amount of buffs that teams gets will increase your offense like crazy and Obi with most attacks ignoring protection doesn't hurt GAS that much.
Next time you need to play Profundity vs Negotiator do it only with the 3 starting ships, I was getting 77 banners every round with that strategy, and that could have given you the win in this one
When youre doing nightsisters vs holdo you should try to target down rh finn first if you can, hes the one who heals everyone through his basic and nade