The article was about *hackers* moving from a platform to OS X. With M1, I saw a lot of content producers, web devs, ... to go to the M1, but not so much hackers... especially as the platform is *very* restrictive in terms of APIs / apps / etc.
A lot of my friends moved from macOS to a GNU/Linux distribution recently, especially as the hardware in general is more and more "as good" as a macbook.
But, again, this is my own opinion based on what I read and saw - I do not have stats to show how many hackers just passed from macOS to anything else (or stayed on an Intel powered macbook).