While others have pointed out the issues, it is a critical observation to make because it often goes with a very strong selection bias. When someone wants to write that A is better than B -- which would be the obvious motivation of a Microsoft employee -- they will iterate through the cases until they can find evidence that they think supports that conclusion, then publishing that alone. In this case a rather terrible benchmark that, as so many others have mentioned, is really a sort comparison (against an incorrectly done node js sort, making it even worse).

I love .NET. I also love nodejs. The truth is that node is best as a glue system between technologies, and it works perfectly there.