I agree with everything you say. I even tried to push boundaries beyond point&click mechanics with one of my older game Icarus. There is a destinctive border showing up (e.g. when it comes to precise collision detection) where web tech is coming to it's limits - but a large amount of typical Game Jam games imo would profit so much from web tech (e.g. in comparison to Unity) in so many aspects - I keep my eyes open, curios to find more good examples like your game :-)