Mint works. Most alternatives don’t. I can install Mint on a total newbie’s system, and not have to worry about something breaking two weeks later. Hell, most newbies can install Mint if you give them the USB.
On a deeper level, I think Mint devs are one of the few teams that understand the ‘if it ain’t broke, don’t fix it’ philosophy.
It’s big enough that not all of it will burn up. And you don’t want the debris to hit someone.