I honestly can not tell if this is a serious question or a joke throwing around physics techno babble... Maybe this is how business people feel when we try to explain why some data somewhere is out of sync because of system problems.
Not really, you're perfectly free to put USB-C ports in and you can use your standardised dongles if you want. Or mix and match.
I can't imagine what other existing form factor would have been suitable and more useful than them just creating their own and open sourcing the design.
It's worse than that. At our kids' school, they are required to have iPads for their school work. By default then, iMessage becomes pretty much the only game in town for them to message with their friends. If they want a phone that can also then participate in those conversations, iPhone is the only option, it's not even a choice. SMS isn't a thing, if you have any other phone, your friends with iPads only don't even have a phone number to send it to. Something like Discord is really the only other option, but that only seems to have any sort of mind share with kids who are more than just casual gamers.