This is not a unique feature in any way and the games are still bundled with a web browser - thus bigger apk files.
Most other game engines support spitting out a native APK that is not bundled with a web browser like construct's html5 games - thus smaller file size.
Fusion, game maker, unity, unreal - they all compile to android's native apk.
Even free and open source game engines such as Godot export to native apk - without having to do much setup.
None of those engines requires internet connection to export an apk either.
I really don't understand why this is a killer feature
It's still has a number of big disadvantages:
- Your apk is about 80+ mb bigger than a native apk. If your game is 2 mb, when you export it - its 82 mb This is a big deal when you develop for an app store, because there are limitations of file size there
-The games use more memory, because they are played through a web browser
- You require internet connection to export and even have to pay sub fee (the main point - it being BUILT IN is NOT met)
Scirra does not want to make native exporters to save money and you are just thanking them for still having the same problems as before, but instead now you will be using their web server to compile the packages. They are likely using the same technology xdk has and node.js on their server side- so the same apk comes out. Only scirra will be fixing the exporters now.