I asked before how many work years it would require to have a native exporter
For 100% compatibility with the C2 runtime, essentially never - not before we went out of business pouring all our efforts in to trying to essentially rebuild a significant proportion of a browser engine, which are made by huge corporations with thousands of engineers working round the clock. So, you say, why not throw away the features which are hard? Because lots of people use them, want them, and buy C2 licenses for them, and then it causes a huge compatibility nightmare with porting projects. These consequences are worse than any of the problems you think this might solve.
I honestly don't see how it answers my points. An (although beautiful) low-collision count top-down racing game and a few tech demos dont hold up to actual CPU-heavy games/platformers on Steam whose developers are telling you HTML5 is not matching up to expectations set by similar tools (eg: Classic and Fusion and GameMaker)
There was a bunnymark benchmark recently that showed C2 in Chrome equalled or exceeded those engines. So I am confident in saying JavaScript performance has reached the point where it can equal native.