Per a insider interview, oil change intervals were increased because the failure rate of common/popular engines were so low. Increase the OLM (Oil Life Monitor) to the max, or whatever the salesman tells the unsuspecting purchaser, and they will either be needing an engine, or will junk it due to a bad engine from poor oil maintenance, and the dealer/manufacture wins.
I think this started back in the 90's with transmissions with no oil dipstick, and a crazy (if any) service interval.
Push back from old timers was high.. But has quickly diminished as older folks died/quit driving, and the younger generations were never told the way its supposed to be.