I agree with you, is a design mistake. But, just because I started with Ionic in less than three week.
You can not imagine how much I took to understand the Promises, hahaha.
I’ll find out about events and how to call them when I need to.
Thanks.
[Edit]
Found this: https://forum.ionicframework.com/t/best-way-to-check-login-globally-in-ionic-2/49813