One irony in this coming from Ford: didn't the Falcon structure underpin some of their cars for almost 2 decades (Mustang, Maverick, etc) ?
Some of the problem is the perception that the public demands all-new stuff at a yearly rate. Combine that with ROI and stockholders, and something's gonna give.
Stir in Covid, personnel & supply problems, global sourcing, and Gov't mandated complexity, and you get a complex and all-but-intractable mess.
I think a large portion of the population would prefer much simpler vehicles, but that flies in the face of pushing new-vehicle sales with additional features.
Seems to me the car magazines are always pushing for additional features and gizmos as well.

Or maybe I'm just an outlier, content with simple vehicles...newest thing I own is a '97 model, and I find it electronically complex.
I'm perfectly happy tooling around in stuff from the '60s & '70s when I'm not in a hurry A-to-B on the Interstate.