I'd agree. I don't think the article is refutes that "10x engineers exist" - more that some engineers who are able to work fast are incorrectly labelled "10x"

I'd agree. I don't think the article is refutes that "10x engineers exist" - more that some engineers who are able to work fast are incorrectly labelled "10x" i.e. Having more knowledge or banging out shonky code might let you appear more productive than your peers, and you should probably adopt more metrics than simply coding tasks getting completed.