I think the change has been the general user doing many aspects of their real-life interactions (money, government, housing, travel, work, etc) easily and at speed via computing device compared to slower offline or face-to-face, and there's huge consequences if that gets screwed up if it can't be isolated from interference.

What I find interesting is that there's been little interesting making something like QubesOS for as many consumer devices (portables as well as desktop) as possible with an interface as painless as possible so people actually use it, and then the blast radius from any problem is smaller. There's also the hosted services side of computing where isolation on the same host is an expected feature and vulnerabilities like meltdown/spectre are such a big deal over the past 8 years, but it only gets seen as a curiosity on consumer devices.