I agree that an .exe exporter would be nice. It's more in line with the kinds of games I want to make as well. I've never been one for browser games, really. When I'm in the mood for games I want to spend one or two hours vegging out, and I've never found a browser game worth more than five minutes of my time. And I like my full screen.
But even so C2 won't be able to do much for a while. By the time it's at a state to where you can make a long and complex "serious game," then I'm sure there will be some kind of .exe option from somewhere to follow soon enough. I'm not terribly worried.
As others have already mentioned, HTML5 is nice, but it's not going to attract many serious Indie devs.
I have to disagree with you there. Do you know how many indie devs currently use web technologies like Flash, if only for the sole reason that you can easily do cross-platform? TRILLIONS.
Yes, there are more indie devs than there are people on the planet.