AFF export & import I use a lot. I find OMF is very limited for large files and often there are errors. I like seeing recording levels DIRECTLY on the channel faders. Cubase meters are meaningless unless the fader is at 0 db, but if doing a live recording of say 30 inputs, I do a live monitor mix on the channels while watching levels without having to change to the input mixer. There are a few other operational advantages that don’t come to mind now. I have not worked on Cubase for some months.
But if what you say is true Nuendo may have to lose a customer (since Nuendo 1) to some other workstation…