You just proved my point. Let's get deeper into this. Remember that nobody is forcing you to buy a new iPhone. You could still use the old ones if you don't upgrade and you can still make calls with a Nokia 1100. This is what we need to happen with Bitcoin too.
The GSM network didn't need to "evolve" for iPhones to be able to function properly, in the very same way the core backbone that is Bitcoin doesn't need to be "fixed" with hardcoded exponential growth to allow innovation.
But what about 4G? Why was it created if everything was working perfectly before that?