I'm pretty sure that's incorrect at least today, it's possible to skip through the initial setup on a stock Android device without adding a Google account or accepting a ToS.
Perhaps it's possible to do so by pressing or holding some obscure sequence of buttons, but in that case it is reasonable to argue that a 'hidden' option isn't really an option at all. After all, you can't hide microscopic text on a paper contract and expect signees to be bound by it.
There may be stock Android phones out there that do provide a clear option to not use a Google account, but there are certainly many phones that do not.
On the bottom of that page in grey is a skip button. You do that and you've skipped over it.