Talking of Mr Bosch,he made all these corrupt ECU's

Indeed, I'm really wondering when that will come out. Somewhere, in a smoke filled room* at an engine test facility, there will have been a gathering of VAG and Bosch, etc. engineers and probably some consultants, scratching their heads wondering how to make the engine meet its' emissions targets yet not get through AdBlue / DPFs like they were going out of fashion.
The techie from the ECU manufacturer will have been expected to pull something out of the hat, and will have suggested "well, we could always switch on the
naughty mode".
So, he only did that for VAG, then?

There's also the point that Nick W makes. Did the powers that be really expect to get realistic "on the road" emissions figures from such a contrived, superficial and easily manipulated testing regime with seemingly no independent oversight?
*- Not really, that's against EU reg.... Er..Um..Ahh, breakit <lights up>