Cars are like horses: people will soon realise EVs are just better, claims VW boss
(www.autoexpress.co.uk)
I guess what I'm trying to say is there is a difference simplifying in an acceptable manner (perhaps backup cameras don't need to be mandated) and doing so in an unsafe manner; I don't think making seatbelts, airbags, or anti-lock brakes optional in the name of "simplicity" is a good idea.
Depending on how long ago you define as the period we had "good" cars, it might be an order of magnitude less safe. It's hard to separate the unnecessary tech with things that have made cars exponentially safer over the past few decades.
I too wish for vehicles that are more simple, but let's not toss the "safety" baby out with the "upgrades" bathwater.