Since my first PC and printer in 1985 ... but for me it seems that not all checks have been done and options tested yet.
I think you are confusing what someone with 30+ years experience from dos onwards can do with what a "normal" user can do. With your experience it is probably second nature to poke a round in the registry and do a little fix here and a little fix there. Most users today (myself included) would damn near get a heart attack when they even find out that such a thing exists. If you have an image to roll back to it is likely far quicker for the average user and business. There is a huge industry based on array based snapshots as well as on various continuos replication technologies. I am also convinced that it is a screwed up setting, but finding out which setting is not simple.