Help yourself.
It's been said that a Scirra based cordova exporter is in the works, and that there should be a version for C2, and while it is a pain in the **** it is still totally possible to export on your own. If you check out the current C3 editor you can see that they at least have started working on the cloud export.
So it's either do it yourself, or wait for that.
As to selling to third parties, obviously it is doable, as you've done that already.
If you were actually interested in fixing the issues you would do what any of us would have to do, and create a minimal capx that shows the issue, and submit a bug report.
Surely you are experienced enough after all these years to replicate the issue in a way that does not violate any nda's.
As to practical uses of C2 I'm surprised not to see more people using it to make ads.
Html5 is replacing flash, and C2 is almost the perfect tool for presentations.
Add vector support, and it would be.