In the 60s and 70s, we had 1/4 ton trucks in a variety of configurations, from command and control, forward observer, scout, machine gun, anti-tank, radio relay, etc. It had a handy, 1/4 ton trailer we could configure in a variety of ways.
We had a 3/4 truck for larger applications, including communications shelters.
What replaced them has done poorly. Again, the “One-size-fits-all”, which started with the ATF under McNamara (who also gave us the M-151 1/4 ton widow-maker, instead of the Jeep CJ product), continues to result in substandard successes, if not abject failures.
The Jeep CJ was a widowmaker, too. They rolled over more than the M151.