It's a little tricky but could be done, but it would be doing exactly the same as what the XDK does for you already for free. Is it that big of a problem?
C2 is the most powerful HTML5 game making tool. With C2, making game is so easy. However, exporting is a little bit hard task. I've been using C2 for a year but it was always painful. As I know, one of the powerful points of HTML5 is "You can export it in every platform", but not all of the features and plugins works on every way of exporting(like CocoonJS doesn't support this and Crosswalk doesn't support that). C2 keeps updating and third party plugins also does, and we says "Does it work with new version of CJS/Crosswalk/blabla". Playing games in web browser is pretty nice but mainstream is to publish application file on mobile appstores. And we don't have even basic features like Google Play Service.
I believe C2 is a tool for the professionals. But we are unstable with these things.
- Performance(or Guide to get good performance)
- Stable way to Monetize(Ads, IAPs)
- the Way of Exporting that works with every features of C2
That's why. I think it would be so nice to get the way of exporting Scirra Team could guarantee. Multiplayer things are not that important.