Some day, before I die, I hope that when I say "If it doesn't work for the developers, then soon it won't work for the customers," and people will know what the hell I'm talking about.
That's why Windows Phone didn't go far, right? Developers were spending so much time on iOS and Android that few companies were willing to spend time on another platform.
Microsoft historically did okay with DevEx issues. Urns out Microsoft doesn’t make money off of too many things. A lot of their software ends up being loss leaders to support Office and Windows sales.
I use my tablet occasionally for Numbers, but it never even occurs to me to try it on my phone.