Please enlighten me. I'd accept "taking away people who would write extensions for FLOSS editors", I'd accept "taking people away who would buy an editor" but I really don't see how me using VS Code for a few hobby projects instead of vim (what I still do half of the time) changes anything.
Recommend revisiting Huntley's blog post for the insight that he so charitably and concisely conveys. As for derived enlightenment, the onus is entirely on you; I have no interest in bartering an appeal to conditional short-sightedness.