I wonder how much overhead in modern OS/PC user experience comes from security/stability abstractions and tools.
Modern software is much more reliable than the software from that era, people nowadays complain when a button isn't working - back then a button could randomly freeze my entire PC.
Correlation != causation. I started using PCs heavily in the mid 90s, and yes "Illegal Operations" were abound. However, the SDLC has also come a long way with testing, automated QA, etc. Back then there was a lot more "wild west" going on for both hardware and software. Generally, practices are much more mature by default nowadays.