To be honest the issue of wanting an EXE, at least for my part, has nothing to do with performance/reliability (or html5 suck blah blah blah...).
I believe that a main reason(and a very important one) is something like Steam/GamersGate/Desura. Its hard to ignore such juggernauts accepting indie devs, but you cannot do anything about it because your game is in html5. I'm pretty sure they will ask you for a binary format. They will even accept flash games as long they as are in binary format (like VVVVVV when it first came out on steam).
So the ideal thing for me is if at least there is an html5 wrapper would suffice, maybe with chromium or any other webkit implementation (hmm I wonder if they support webgl). Monetization is extremely important for many users, and right now due to the early stage of construct 2, we can only have the html5 exporters (and fo course phonegap and chrome :)) (which is fine of course n_n).
But I think its important to understand that many people buy and download exes, even if the consumer doesn't realize it, through other channels like steam.
And yes, Kiyoshi put it kind of blunt, but also kind of true: "How do i make money with HTML5? Right now i don't."
At least without chrome web store (which is awesome, but I feel its too small an audience).
That said, kudos for making the experimental Phonegap integration. I'm sure many of us(I do) is very happy for that implementation, even if its experimental.
I think many understand that this will take a lot of time.. its just a matter of patience.. everything will sort out :)