Agreed. I also agree with your other post that the water was in that canister for much longer than a single fueling. It will be interesting to read as others change there filters if the canister in that photo is an isolated sample.
I remember back in 06 there were some rumors/allegations that some of the cars coming in from Mexico had fuel removed from their tanks and it was replaced with waste oil. Is it possible that the something similar is happening with these cars, but with water added back in???
Unfortunately, it is much like reprograming or other modifications to a car still under warranty, you are giving them (VW) an out. A proven fuel system such as on an ALH, it is an no brainer, maybe even a PD. But on one that is just over a year in service with the "issues" VW warranty attitude, dealer service issues contained in posts herein, just understand the pitfalls down that path.