Alternatively, you could perhaps read the summary at the top of the article and see that the actual analysis goes as follows:

a) According to EU treaty law, the oversight on EU-US Data Transfers must be independent

b) In the current EU-US deal, the European Commission relies on the independent FTC 259 times

c) the US Supreme Court decided in Trump v. Slaughter that the US Federal Trade Commission (“FTC”) may not be independent anymore

It is completely immaterial that the Supreme Grift ruling was not about the data transfers itself -- this is just some fallout from an activist court creatively reinterpreting established legal structures.

> (b) the situation might progress in that direction (or it might not.

Given that the closing paragraph contains the sentence "given that the US still exercises massive pressure on the EU to keep personal data flowing, noyb will also file a lawsuit in the coming weeks, aiming to allow the CJEU to annul the current deal" I think it's pretty clear that it will.