Well the article is from 2014, this should be mentioned in the title. I noticed it because the author was not even talking about the dataloader pattern used often in the context of GraphQL when asking for new patterns.

In Node.JS the dataloader processes N lookups simultaneously in the next tick of the eventloop. So call(1) call(2)...call(n) would be executed as call([1,2,3,..n]) allowing you to efficiently implement it.