This is really important, and I would further emphasize the word
our. Zoom doesn't need permission to "train" their own in-house artificial intelligence model when it can just transmit/sublicense that data to someone else who will train a model, or to an internal team who will use it (perhaps in few-shot prompts at scale, which is not technically training a model!) for "consulting services" in the broadest sense that that team can imagine.
I generally feel like the general slowdown of capital availability in our industry will lead/is leading to companies doing a lot more desperate things with data than they've ever done before. If a management team doesn't think they'll survive a bad couple of quarters (or that they won't hit performance cliffs that let them keep their jobs or bonuses), all of a sudden there's less weight placed on the long-term trust of customers and more on "what can we do that is permissible by our contract language, even if we lose some customers because of it." That's the moment when a slippery ethical slope comes into play for previously trustworthy companies. So any expansion of a TOS in today's age should be evaluated closely.