[mathgeek]

> Nowadays everyone just gets email notifications on their phone anyways right?

Not everyone does. It's a typical 80/20 problem (the 80% being those who use the technology that's easy to develop for, the other 20% being the hard part). 80/20 not being the exact numbers, obviously.

That being said, you certainly don't _have_ to cover more than one way of sending notifications, but that's a decision to be made and the consequences acknowledged.