I'm sorry to say that this is a highly ignorant reaction to the situation. Nixpkgs was nowhere the size it is now in terms of contributors and packages, the growth in the past six years was enormous.
The amount of monthly contributions has doubled in the last four years alone, from ~7k to ~14k commits per month. Why did I take six years as a reference? Because 2020 is the year nixpkgs really started to pick up traction, and the growth has been almost linear ever since.
Your argument only holds if I were to say "it grew to its current amount of monthly contributions in 2020 and then stayed constant, without growing any further."
FYI that is the old unofficial wiki, the official NixOS wiki is at https://wiki.nixos.org/wiki/Impermanence (although this particular article is also outdated there)
Thanks. One of the things that confuses me about the wiki is the official one contains a disclaimer about the potential for the content to be out of date. The unofficial wiki has an easier to use domain name and no disclaimer, so unless someone find it beautiful the wiki home page, it can be easy for them to interpret the unofficial one as being the de-facto/preferred source of information.
I'm sorry to say that this is a highly ignorant reaction to the situation. Nixpkgs was nowhere the size it is now in terms of contributors and packages, the growth in the past six years was enormous.