I have yet to try Zig, but I approve of the idea of taking extra time and reducing scope to make sure that what you do ship is solid, especially in something like a programming language that may end up being a foundational piece of many other projects.

I would argue that the changes you refer to around the turn of the millennium were not in fact all that rapid, but rather the more publicly visible phase of a more gradual change that started no later than 1969 (when ARPANET went live), perhaps well before that date.