They also need to change it so that an incoming call doesn’t takes over the entire screen of your phone. I could be doing something on my phone like typing this comment and next thing I know, I’ve answered a call.
Except that it’s not...not anymore. It’s primarily a computer that can take phone calls. How many people are still taking phone calls instead of texting, messaging, emailing, or connecting in other ways via social networks? How long is the Phone app used compared to Safari on your phone’s battery settings? For how many people is Phone at the bottom of that list? On mine it is.
Finally, your point is still completely irrelevant to why it needs to take over the entirety of the screen. It could still primarily be a phone without being intrusive when you’re doing “secondary” tasks.
But when I'm using it as a portable computer, the portable computer paradigm should prevail, which is what happens on Android: if my screen was off, I get a full-screen notification to swipe up on. If my screen was on, I get a notification at the top of the screen with buttons to accept or decline.
I'd bet money that by average customer use, the classic telephony functionality of iOS phones accounts for less than 1% of phone usage. They're used as computers first, second, and third and as a phone a distant last.
