This idea that the US labs are just directly committing fraud against effectively every major US organization is the most tinfoil hat thing I’ve heard in a long time. Training on excluded data would (eventually) be trivially provable. Forget loss of trust; this would make the labs a defendant to the most legally well-resourced organizations on the planet.

That's very defeatist. Do you have any concrete reason to think the major providers are lying to every one of their business/API customers about not training or storing the data? The business loss of trust would outweigh any benefits of the data.

(And if they freely lie about such things, I don't know why they would bother taking the PR hit when they announced fable had temporary data retention for their abuse prevention)