Very doubtful it has anything to do with the DCT. The weight offset would be easily countered by moving your body weight a few mm as your body mass is so much more and so much higher on the bike. The weight of the dct is very centralized and highly unlikely to have any influence on this. Every motorcycle is unique and perfect frame alignment is rare. Older Kawasaki's had very crooked frames and the wheel adjustment marks were very inaccurate. I would say that even on the AT the wheel alignment can be a little off and this would be fairly normal. If this is a big concern I would check your wheel alignment using a string or long straight edge. Take the string and pull it tight against the rear wheel edges as you hold the end of it while lying down in front of the bike and sighting down the string and line it up straight. You will have a gap from the front wheel to the string as it is narrower than the rear wheel. Measure the gap and do the same thing on the opposite side to see if there is the same gap. If the gap is different this shows that the wheel is not aligned in the frame. You can adjust the wheel until you get it perfect and then make you own adjustment marks or at least determine how far off the rear wheel adjuster are and use the same amount of adjustment mark offset when you need to adjust the chain the next time.