Disingenuous analogy.

It's more buying a season pass for Disneyland, then getting told you can't park for free if you're entering the park even though free parking is included with the pass. Still not unreasonable, but brings to light the intention of the tool is to force the user into an ecosystem rather.

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.