I don't really see how this admits they are training AI on user data (edit: user documents, which I feel is what is implied. User app usage is probably placed i

I don't really see how this admits they are training AI on user data (edit: user documents, which I feel is what is implied. User app usage is probably placed in training data). They are processing data with AI, both off-the-shelf models and own models, sure. This is no different from any "old school" ML fraud detection, customer journey analysis, etc., etc.