What is he comparing to? Arguments #2-#5 & #7 seem to apply to Java as well, and #6 just quotes an extremely lopsided benchmark exploiting one specific feature of their C# implementation. Most of the arguments would apply to Objective C too, I presume (though I haven't really used that outside of toying around).
I'd personally expect we'll see a lot more JS for mobile apps: a terrible language compared to C#, but a very well understood UI layer (HTML).
I don't think each point is meant to show that it's better in that respect than every other competitor. I think it's meant to be sort of like those feature grids on software packaging, where some of the competitors may have some combination of the features, but only Our Product has the complete set.
I'd personally expect we'll see a lot more JS for mobile apps: a terrible language compared to C#, but a very well understood UI layer (HTML).