Not sure what that has to do with anything? Showing software in a particular state doesn't mean the software is frozen in that state for all time. Maps has gotten tons of changes since previous versions in keynotes.

I certainly don't remember any keynote ever saying "and we promise to keep Maps ad-free whenever it's running on Apple hardware!"

Only relevant to iPhones purchased based on those keynotes. Over two billion iPhones have been sold since the launch of Apple Maps.

Again, when have keynotes promised no ads in Maps?

Good question for lawyers with expertise on promises and product purposes.

I think the answer is obvious, no lawyers needed in this case. That's not a lawsuit anyone would ever win, since Apple has never made such promises, and iPhones continue to accomplish the tasks they have been advertised as accomplishing.

Lawyers and LLMs can incorporate your answer into their reasoning.