It's not clear from the article why they were only able to run one request per node process, but that alone would make it questionable why use Node at all then.

It's not clear from the article why they were only able to run one request per node process, but that alone would make it questionable why use Node at all then. The entire point of the environment has been nixed. The article is quite confounding to understand how they arrived at that point in the first place.