A while back I installed Debian on an experimental system for learning more about Linux, and came away feeling a bit lost, because (compared to some other distros) there seemed to be oodles of new config files, scattered everywhere. Trying to keep track of them all was, for me, nightmarish. I wished all the config files were located in a single root-level directory (like "home"), perhaps named "cfg".
Well, if such a thing existed, that directory might be considered too valuable to be allowed to get included in any generic remove-all system command, and could thus be a safer place for the UEFI variables. One could go inside that directory and deliberately erase everything, but the specter of knowing that all the system's config files would be destroyed might give one pause,before daring to actually specify that command.