From all the reports on the DCT you lose nothing going that route and you actually gain some advantages especially in an urban commuting scenario. Keep in mind that most high end sports cars (think Ferrari, Lamborghini, etc) have moved to DCT with several models not even offered in a manual. Their DCT sales are way higher than manual. That is how good DCT technology has become.
You forgot to mention that Honda is the "Only" motorcycle manufacturer to offer DCT in a motorcycle.
I think that we all know this, but its nice to reiterate it from time to time as a reminder...
The DCT can be shifted "Manually", if that is desired or warranted. I have ran the bike in "MT-Model" under certain circumstances, like stuck in traffic on the freeway or riding around in a parking lot.
The "Selling Point" for me was there are a total of "3" modes this bike can be ridden in. I have also pretty much mapped out where to use each of these and change modes in a fraction of a moment.
D - Drive "Econo" - Highways and Freeways
S - Sport "High Rev" - City Streets, Canyons, Mountain Roads, etc...
MT - Manual - Low Speed Maneuvering and Trail Riding