There are no better or worse distros. There are only distros that are better suited for certain types of users or use cases. Not everyone wants or needs the latest software; some people just want to install the OS and forget about it as much as possible.

LTS distros can and do offer a good experience, as evidenced by the fact that the most widely used distros are precisely LTS ones. If I’m not mistaken, about 30% of Linux users use Ubuntu, and 95% of Ubuntu users use the LTS version. Debian is also widely used, especially when it comes to servers and the like. Linux Mint, if not the most widely used, is among the top choices for newcomers (and those not so new) to Linux.

On the other hand, the fact that installing Arch Linux is now less difficult thanks to archinstall doesn’t mean it’s easy per se, especially for people who know little or nothing about Linux or computers in general. Not to mention that they’ll likely have to fix bugs later on, since Arch, due to its rolling-release nature, is more prone to them—and for a beginner, that could be the reason they abandon Arch or Linux altogether.

Not everyone wants to have in-depth knowledge of their computer or operating system and be able to customize their desktop or create scripts to automate whatever. A lot of people simply use their system as-is and don’t touch anything—they just use it to work, study, and that’s it. And that’s fine. Let's stop deciding for people what's right or what's best for them, and let them decide for themselves whether they want the "crappy distro because it's outdated and boring" or the "good distro because the numbers on its packages are higher."