This is just managing the low-effort low hanging fruit.

The students who, without a single neuron activating, will just copy paste questions to an AI web UI and paste the answers back.

Or the mid-tier corporate people who file 50 page "reports" that are 100% AI bullshit.

None of them will install a local model with no watermarking or bother looking up some Badonk AI service to do the same thing.