Your terms of employment matter more than a EULA, and at the pay scale in question they can be expected to be literate or hire a lawyer. I’d be quite surprised if they weren’t given clear instructions the first time they used the system at a company big enough to have had lawsuits before.

“Incredibly good” is a value judgement we don’t have evidence to assess but I don’t think you could support that claim here in any case: people who break ethics rules on small things are pretty likely to break them on big things. No mstter what else they’re bringing to the table, that’s a risk.