The added line to their TOS doesn’t block anything anyone was concerned about. It says they won’t train their own models without consent (which you give by using any A.I. feature or joining a meeting where the presenter uses A.I. features).
But what people are worried about is them licensing conversations to others for A.I. training. Many Zoom calls are one to many presentations but a lot more are private conversations with insider info, trade secrets, PII, legally protected data (like a healthcare record in the US), etc. Zoom is reserving the right to do whatever the fuck they want with recorded meetings.
Section 10.4 of the TOS is the issue. Most people don’t care if they use data internally to build features. Lots of people care if they share private meetings with third parties.