I assumed the "es6" row header refers to the engine's native implementation of the feature. In which case it should grey out "destructuring" under Node 4.2.6. B

I assumed the "es6" row header refers to the engine's native implementation of the feature. In which case it should grey out "destructuring" under Node 4.2.6. But they don't, it's listed as "10x slower". What am I missing?