Yes, she (and I) understands all that.
She was leaving EPCOT and was going to have a little time to kill before an ADR at The Turf Club at Saratoga Springs, so I suggested she go to DtD first for a little while, and then walk/take the boat to Saratoga Springs. That's when she told me you can't do that anymore (go from a park to DtD). She didn't have time to go from EPCOT to Saratoga Springs, then to DtD, then back to Saratoga Springs for her ADR. I'm sure she was fine, whatever she decided to do. I just hadn't heard before that parks/DtD transportation didn't exist anymore.