I watched the video and I did not understand why would they go to such lengths to use "alternative" mode most of the time, only using the proper one when in the NEDC cycle. Only downside I could understand from the talk is that it would use more AdBlue which seems such an unimportant thing.
They limited Adblue tank capacity, together with other German OEMs in a cartel. Also it seems the affected VW engines indeed are not able to meet emission standardstandards without serious changes.
Is there something I am missing?