It massively depends on the manufacturer, model and country. So it not entirely true.
Even if it was true it doesn't make EV simple or simpler which was your claim as they are completely reliant on a huge amount of electronics.
There is no such requirement really for Petrol/Diesel vehicles as I drive a vehicle with no ECU and no digital electronics.
> For better or worse, that’s all cars now.
It is obviously worse. Things are less reliable, less repairable and more proprietary.
> The days of simple engines you can fix with a wrench are in the past.
No quite true either.
You can still do a huge number of jobs with basic tools. You may need some sort of code reader to help diagnose. You can still physically inspect things, and prod things etc. The fundamentals of how the vehicle works hasn't changed.