It's not a disingenuous analogy ... whatever it is.

But 'you can't park even though the ticket includes parking' is not an appropriate analogy because 3rd party use is definitely not intended. They did not 'state one thing' and the 'disallow it'.

This is a pretty straight forward case of people using their subscription for 'adjacent' use, and Anthropic being more explicit about it.

There's nothing fancy going on here.