Earlier quoted context omitted.
I think this is aimed at legacy support, I don't think anyone would target this as a supported runtime. Ironically most of the useful flash applications/games etc wouldn't run on these runtimes as they are using features not supported in HTML5. This sort of thing works best for crappy adverts and banners, which no one really wants anyway. This is highlighted by the fact the big competitor (Gordon?) is developed by th…
What features are they using that html5 doesn't cover? I'm genuinely curious, as I do a bit of html5/webgl and formerly did a lot of flash/haxe, so I'm wondering what I missed...
Just saw this answer to another question about the technology:
https://news.ycombinator.com/item?id=6558539
I guess you could ask him for more details.