There may or may not be 10x programmers - I, personally, find the reasoning in the article convincing. And I think there may be programmers that vastly outperform others in programming tasks. So I think there may be 10x programmers.

But, I believe it does not really matter (at least most of the time, most meaning something like 99%).

We are working in teams, inside a company that has a certain culture, rules and processes. How we work together as a team and how the company/culture/system we work in helps us in / prevents us from doing our work has a much greater influence in overall results than individual programmer performance.

This also includes how the system supports us in learning (not only formal training, even though this might be beneficial) and teaching. Teaching each other skills needed for the job, and learning how to work together so that we amplify our collective skills and dampen our shortcomings.