Tbh I'm now forming a headcanon where everyone had an outfit prepared already because they knew it was coming one of these days; like Kate gets the call and is like "figured you guys were gonna pull something like this, lemme go get the dress I picked out and I'll call America to come pick me up!"
Also, side note, since they did include Noh here, I'm fully expecting Teddy and Billy to show up in GOTG, since one of the future issues has Noh as an ambassador to the Alliance