For the same reason that about 80% of computer users are on some sort of Windows NT-based system with the OS dated somewhere between 2002 and 2010. Windows also doesn't dump you to a non-graphical terminal shell just because some random poorly programmed but apparently popular app (due to being no other alternative on the OS, or the good old KDE/Gnome wars where apps only work on one but not the other) fails to run after simply changing settings in its own GUI. The random BSOD days disappeared along with Windows Me; any NT-based hard crashes are usually caused by hardware failures (including memory) or viruses (being fair though, which are much more uncommon on Linux since there are less clueless users who will simply click anything that looks 'cute', re. BonziBuddy, and the fact that randomboobznpussy.avi.exe (with an AVI icon and the extension hidden by default Explorer) won't run natively under Linux anyway).