Saw the video...couple of points.
First...Does Gardner think the freight railroads will let Amtrak run multiple frequency trips on routes that currently have no passenger service at all? Atlanta - Knoxville for example. Is NS going to be, all of a sudden, this great partner when it comes to corridor services out of Atlanta? Hell, right now NS won't even let them cut off cars at Peachtree station. Have any of these issues even been discussed with the host freight railroads? Gardner seems to think that by eliminating the LD trains, the host railroads will have no issues at all with new regional service. Good luck with that!
Second...Let's say you do eliminate all the LD trains and are just left with the NEC and the state supported corridors. You still have huge capital expenses with the NEC. What are the Congress people going to say when Amtrak shows up wanting money for the NEC after cutting all the LD trains? I thought you said you were going to be self sufficient without the LD trains? I don't think so! You cut my train, don't look at me for support of the NEC.
Maybe Gardner knows more than I do (I am sure he does), but I don't see how this is going to all work out.