By all means if you have a bottomless bank account and want all the gear you could bolt onto a rig, do so. But to infer not having an expedition vehicle is foolish, is negligent, or is an absolute necessity is a bit out there.
Hey, you were the one that brought up "expedition vehicle". Some may need that, and it still won't help them. But a lot of people don't need that because they are experienced in and prepared for adverse weather and/or bad conditions. Getting "stuck" is normally temporary because they're prepared for that or find a way to overcome it. Sure.......things happen at times that can't be overcome on your own, but minimizing those with experience and preparedness is the key.
Back in the early 90's in November, my buddy and I hunted about 30 miles away from camp one day. We took his Pathfinder. The weather was great, warm and sunny.......but there had been about 10" of snow on the ground. By the end of the day, he couldn't get his Pathfinder up the hill to get out this hole because of all the melted snow and muck. He didn't have any chains. We spent the night there without any sleeping bags, just kept a fire going all night. We had food and water in the vehicle, and I knew it would be easier to get out in the morning after everything was frozen. We made the best of what could have been a bad situation, and after it was all frozen we got out. Had he had chains, we would have been out the evening before without incident. He didn't need an expedition vehicle......just chains.
And there's a reason why you see so many Jeeps with a Hi-lift jack strapped to them. It's not for looks, it's because they know it can come in real handy when you've put your vehicle in a bad spot. You can pick one up for well under $100, that's a pretty good price for cheap insurance. Again, no expedition vehicle needed.........just some tools and knowing how to use them.
Here's my "expedition vehicle"......stock 1989 Toyota WITH CHAINS, and a Hi-lift jack with tow chains and a recovery strap in the back. This was 1990, and my buddy and I were the only ones in this area.......because no one else seemed to have chains, even back then when you needed them every year. When we first got to the intersection of the main road and this spur road, there was a Suburban (with PA plates IIRC) sliding down the hill sideways. And there were a few other vehicles parked there watching. The next to try the hill was a truck pulling a small pop-up camper trailer. His efforts didn't go any better than the Suburban's......and jack-knifed on the way back down while sliding backwards. It's pretty obvious that "being prepared" and "using your head" isn't a generational thing. LOL. With chains.......the Toyota didn't even flinch going up that hill. I still use that Toyota every hunting season, but rarely ever need the chains or Hi-lift during archery. But I still take them.
