This doesn’t surprise me. Client servers have been around for decades but today’s microsoft machines lack the sophistication of the mainframe client server class. Bill Gates answer? saturated the market with important, but hacker intrusive, often not sophisticated barefoot pilgrim software that simply can’t cut the mustard. Mainframe software engineers are in a class by themselves who fully understand the workings and sophistication of the architecture.
Different class yes, but I can't tell you how many times I had to take half a Sunday just to go in to the office to do a scheduled reboot (IPL we called it) of the machine to apply a patch or even to adjust for Daylight Savings Time!
I don't miss that, and I don't miss the 1000's of fixes (APAR's they called them) that got issued every month!