Couldn’t get it to work on my 4.2.2 device or a 4.2.2 emulator either.
After reading royanon answers I tried installing his ionic version with
npm install -g ionic@2.0.0-beta.25
(seriously I didn’t really know what I was doing there, if anybody has a good link for ionic 2 versions it would be appreciated)
That gave me his “ionic info” on a new project and IT WORKED on device.
There was NO DIFFERENCE with or without cordova-plugin-crosswalk-webview.
It appears that newer ionic 2 versions are buggy here, or at least 2.1.0-beta.1 which I had previously.
Does anyone know how to report this issue the correct way?
(EDIT) UPDATE: Seems that there is another new ionic version out: "2.1.0 " notice that theres no beta 
The above issue is fixed but apparently the starter packages changed so they won’t work anymore with older ionic beta versions (gulp removed?)
https://forum.ionicframework.com/t/out-of-the-box-error/64803/6
Off-Topic: I spend the whole day yesterday to make it work on 4.2.2 and today because new projects didn’t work at all anymore with yesterdays solution. Yeah, you get your punishment for using beta, daily…