@SamRock - Yes that is the only known way to be able to use Admob on Construct 2 for Android.
The official plugin was a mistake to use, from the start. I only noticed not so long ago that my error with building admob on IntelXDK was because I used the C2 admob plugin instead the cranberry plugin, because I thought it did not exist and cranberry Admob plugins were just meant for Mopub and other non-googleplay stores. But It was just right next to the other Admob plugins all along, the difference was the name is not so clear to me. I thought that IntelXDK required the cranberry plugin, I did not know it also requires cranberry admob plugin for Construct 2 also. Well, just sharing to avoid others to make the same mistake.
The Things you can create is only limited by your imagination. If you don't have the skills then use your motivation as a natural force to exceed all expectations. Chadori RebornXD