Just remember the Ford 9n. My 1941 model is simple and "tough as a boot" as well. It starts every time, pulls hard and truly does everything we ask of it. And if there is a EMP, it will be the only thing around that will start and run.
I don't think proven platforms ever become irrelevant but they certain can fall out of favor.
After 76 years, our old Ford is also crude by today's standards but has stood the test of time. I believe the RTVX platform has a long life ahead of it for a targeted group of consumers.
Just my two cents.
I agree.
When that target is so small there's no profit, it will disappear.