jam games and jam communities overall are special. To get noticed and played, the game has to be bite-sized, instantly fun, instantly accessible and have click-bate (or at least just nice) cover image.
And that html5 feature just adds on to the “instant” thing. Which makes sense, given the limited time a casual player is ready to dedicate to jam games, and 52 games to play, in our case.
Also we’re publishing the nominations soon. So it is more than just people from top3 who get something.