I am not sure about the "harsh" part.
I have an NC700 DCT with just over 40K miles.
I agree that the sport mode shifts with alacrity if I make liberal use of the throttle.
The "standard" mode seems OK to me.
The sport mode does provide a higher level of engine braking in stop-and-go traffic.
But at 71 years old, I rarely use the sport mode anyway.
I have driven an Africa Twin with the DCT and agree that the word "harsh" is my opinion too.
I believed at the time that the stronger 1100 CC engine was responsible for that.
But I do not know for sure.
That size bike is too much for me to consider.
I no longer commute on a regular basis, but I do lots of gravel roads here in rural Idaho.
The DCT may give up some level of driver-control, but the ease of operation become important now that I am getting older.
I really like then DCT overall and often wish the NT had the same transmission.