Yes, people tend to run to this "extreme", seeming to imply this would be the ONLY monitor option and thus full-time, all-the-time requirements of goggles strapped to all of our heads.
Instead, I see this like a new kind of laptop screen, of which I currently try to use as sparingly as possible because I'd rather work on screens considerably larger than 16". However, when mobile, the choice is big (16") laptop screen, smaller (but up to biggest) tablet screen or smaller (but up to biggest Phone screen). None of those are as nice- or efficiently productive- as my desktop 40" ultra-wide. I wish I could have that much screen RE when I'm on the road, in the plane, etc.
Therein lies an opportunity. The problem: some people seem to want bigger and bigger screens for everything. Companies are experimenting with folding phone screens now and some people are buying them because they want a screen bigger than the non-folding kind. Some are experimenting with screens that roll up and some people are buying. Why? Because they want screens that are big but take up less space. How else could a bigger screen be available to the mobile computing user?
One way MIGHT be VR glasses/goggles perhaps delivering a MUCH larger screen (or screens) on demand. Instead of a clamshell in a bag, maybe it's a keyboard + goggles in a bag for some people? That seems quite plausible to me. There's already laptop/tablet hybrids that separate screen from keyboard (2 separate pieces). There's already portable screens that are only screens for sale. Presumably one could pack a Mac mini or Studio and one of those in a bag for a very powerful mobile desktop.
If these arrive with M2 or M3, is the Mac computing power in them? If so, bring a bluetooth keyboard and some have a desktop-power Mac with any size screen. Others not interested or not needing a screen bigger than 16" can stick with the "as is."
Those working at a desk 8-10 hours in a day will likely have a screen(s) already in place that suits their work. It's the mobilescenarios where I foresee an opportunity for a 17" MB without a physical case big enough to make that work... or an 18" or a 20" or a 30" or a 50", etc... all fitting nicely inside of a smallish, laptop-like travel bag.
I foresee NO scenario where people are roaming around full-time with goggles strapped to their heads. I foresee no scenario where the only monitors anyone can use in the future are goggles strapped to their heads. All of the existing options for screens would still be available for anyone who prefers existing options.
I also see no scenario where people are roaming around full-time with an open laptop on their laps. People bring along the laptop (screen) when they need a laptop. Perhaps other people bring along a goggles (screen) + a keyboard (bottom half of a laptop) when they need a modestly different kind of laptop?