The author of the blog post likes X, that’s why distro A is might be the perfect distro for them. While I like Y, which is why distro B is the perfect distro for me etc. What makes Linux -in a sense as a platform- perfect great is that it allows one to either find/install/build/configure the perfect system for them^[1]^. Some prefer to be in full control from start to finish, while others just like sane defaults. The fact that Linux allows for such diversity is almost mind-blowing.
The degree of that diversity will only increase as time goes on and very likely at some point (purely as a side-effect of further diversification) very ‘dumped down’ versions of Linux might -and perhaps already have- arise. This is inevitable and -perhaps to a degree- essential. And no matter how ‘dumped down’ some Linux distros would have become by then, you can still bet your money that distros like Gentoo and Slackware will continue to do what they always have. So that everybody and their mom, but also the tinker-loving you, will be able to have their perfect distro.
Therefore I don’t see any merit/benefit in contributing to gatekeeping, elitism or whatever this is supposed to be. Instead, we should contribute in more meaningful ways; e.g. like by maintaining some packages you need in your perfect distro. And perhaps those changes will actually contribute to it becoming the perfect distro for others…
I’d argue Linux isn’t quite there yet, unfortunately. As some highly specialized systems just don’t exist yet… Regardless, l would reckon it allows one to get the closest to such systems.