So in theory if you took twitter content and then transformed it so it "summarizes" all tweets with an AI rather than posting the exact text, would that be allowed?
Because that's stupid. These laws are stupid.
The point is that you can't steal someone else's content 1:1. But you can use it for a different use (say, display the tweet in an article, then comment on it).
That's exactly the way UK courts are heading, see Getty vs Stability AI. The court ruled that there's no infringment because the model doesn't store exact copies, just derived weights, and therefore when it generates new images those aren't copies of protected works.