IMHO this is something that should be regulated away as consumer unfriendly and environment unfriendly. (Not to say hostile.)
In the end I got a DSG specialist fix the problem in two hours by replacing two simple components physically. The car then spend an hour retraining the dsg.
A very temporary phenomenon in the evolution from ICE to EV.
I'm thinking of a semi-rural use case, when your typical daily trip is 20-50 km, but the charging infrastructure is poor and occasionally you do need to drive 200-300 km in winter.