There’s a lot of details that crash if you aren’t building a one-page app. Example: what happens if you click the refresh button on a page. navParams does not handle that. The changing landscape of the relation between pages and URLs. There’s a bunch of undocumented edge cases that show up when you are no longer running Ionic in the context of a one-page app on a handheld device.
Edit: see this forum thread and this Github link: