i would be very cautious drawing a common conclusion folks as theres big differences manual vs DSG and how the 'issue' is seen , light load vs WOT.
most issues are seen on manual cars under WOT in a high gear.
Even if the map 'caused' the effect it could only be down to increased power highlighting a pre-existing issue, as it cant directly effect 'drive' , i.e. the revs cant rise without some 'give' in the drivetrain. (which from what I know cant be done by an engine map?)
the other test would be does it happen repeatably.
i.e.
1st then into 2nd = effect ?
3rd downshift to 2nd = effect ?
and what about shift into 2nd , through to redline but hold (stopping upshift) , let car drop back down to idle but still in drive (DSG must not be allowed to change gear), then try and accelerate again = effect ?
in theory if its a clamping or mech issue in DSG the third scenario may not happen as its been 'locked' in gear for a prolonged period?