Yes, Visa and MasterCard will attack the biggest game series ever in an attempt to protect their reputation. Also, I have swamp land in Florida I want to sell you. There's no indication this will happen other than some literal who from Zoom (which I just heard of because of this) going "DURR IT COULD HAPPEN MAYBE."
Games "journalists" are jokes.
Louis Rossmann did a great vid (mentioned Notebookcheck too, hehe) 12 hours ago about this very matter: VISA, Steam, financial censorship, and the lesson you need to learn from these Australian activists (https://youtu.be/suxyWKgWXVs)