Sometimes, it's just not worth the effort. Seriously would you rather:
A) Get invovled in a lengthy back and forth, potential legal proceedings with a billion dollar company.
or
B) Listen to the message being sent, be pragmatic, and then get on with building things.
Depends if it's existential, like I said. If my whole company depends on X and replacing it is intractable, there's not much other choice. Having looked at the landing page though, seems like they can just go with other models and it will (largely) be fine, yes.