It's hard to argue what could have been. I can only base my arguments on what has actually happened, and it does seem like 10+ years later, Apple has handled the removal of google maps pretty well. Google could have played along and remained the pre-installed default on my iPhone, yet instead I am content using Maps, which is pretty fully featured here in Singapore (and maybe falling back on google maps only at times when Maps doesn't suffice, such as Asian countries like Indonesia).
Also, I suspect that at the time, smartphones were still new enough that Apple may just have been able to get away without a maps app (or at least, a fully-featured mapping solution at the time). The strength of their fanbase could have bought them enough time to come up with their own, and it would still be the same outcome today. Again, speaking from experience, my first iPhone was the 4s, and Google Maps was already fairly crippled by then, and even then, I rarely had a need for a native maps app because I don't drive and the smartphone wasn't yet so integrated into my daily life.
For me at least, I would still have gotten an iPhone regardless. Maps or no Maps.
Well, YouTube can still be viewed in Safari, and the Play App is available. So there is at least still a way of accessing and playing YouTube videos.
A powerful, award-winning app for bookmarking and organizing videos to watch later. Critically acclaimed by The Verge, Daring Fireball, 9to5Mac, MacStories, Mac Power Users, iMore, AppAdvice, and more. The Verge: “This is so much better than trying to manage a library in the YouTube app”...
apps.apple.com
This is also why I support Apple having their own music streaming service. If Spotify doesn't want to play ball, well, no biggie for Apple.
And who knows. Maybe one day, we may get another service for easily accessing spatial video content, though hosting costs may be an issue. Either way, it's still early days, and I wouldn't count Apple, or the Vision Pro, out of the game just yet.
The vast majority of apps in the App Store are either free or ad-supported and make Apple no money. So yes, plenty already are.