Just because someone posts a benchmark that is obviously flawed, doesn't mean that someone else should be obligated to do their own benchmark as a counter.
These guys didn't ask for node.js to be used in any benchmark.
The onus is on the person who chooses to do a benchmark, and publish the results, to get it right. If they don't get it right, then they are in the wrong and deserve the criticism that they get as a result.