I think the performance is there, it's just gained from JS VM optimizations instead of an alternative VM in the browser. The advantage is that it gets the benef

I think the performance is there, it's just gained from JS VM optimizations instead of an alternative VM in the browser. The advantage is that it gets the benefit on all browsers (even those that would never add a Dart VM) and all other xxxToJS languages get the benefit as well. Dart has enough other advantages so being on par with others on performance doesn't mean Dart has to die.