From a legal point of view that might be true, but I believe people are not aware that this is a problem. They just register, check the "Agree terms of service" box and do whatever they want to do. I saw that often, especially with Marketing.

It's not just legal but also the practical point of view. They committed fraud when they clicked that checkbox. It's exactly the same as signing a contract with someone else's name.

Also when you do npm i. That's fraud.

Did you just agree to opt the company into that smorgasbord of licenses?

Not really, most (larger) companies have internal policies about that, listing the acceptable licenses. Which is exactly what I said - the employees are given the power to accept the terms. Some employees can sign SaaS contracts, though that's usually much less people.

Then either the mandatory corporate training they signed off on their first day of employment was deficient, or they need to be fired for cause.