IsNotNull

Most people already use multiple messaging apps. Facebook Messenger, Instagram, default SMS app, etc.

Basically no-one does all of that in one app, so using Signal for Signal messages is normal for those people.

Personally I think supporting SMS is what's "out of touch". It's a legacy system that a huge chunk of their users won't have ever used in the app except possibly accidentally.

"Possibly all of them".

A huge chunk of Signal users won't have ever used the SMS feature so why would they leave?

This will allow me to use my Apple iPad charger or my Apple MacBook charger to charge my Apple iPhone. Not being able to do that currently is not innovative, it's annoying.

Not if you already have an Apple iPad or an Apple MacBook that's already USB-C.

Apple disagree. They moved away from Lightning on iPads and Macbooks already.

Apple already make iPads and Macbooks with USB-C and have done for years. They're already moving away from Lightning.