I don't think Nancy Klimas is in any way touting this as a recovery program. I think she is suggesting it as a way to slowly, slowly increase our capacity for activity so that we can function better, have an improved quality of life, and perhaps avoid some of the problems that can come from prolonged bedrest and deconditioning. She isn't saying that we won't still have to live within the restrictions forced on us by ME/CFS, just that it may be possible to extend the boundries if we use a very controlled, slow, measured approach.
Even so, I think the baseline exercises suggested in the video for someone who is bedridden would certainly put me into a crash. Based on trial and error, I have to start lower and go slower than what's suggested here for severe ME, and I'm not that severe: I'm mostly, but not entirely, housebound, and I'm seldom really bedridden.
The videos never really addressed VO2 Max testing for bedridden and/or severe patients, either. I was hoping to see that in the third video.
Lacking that information (and without resources to get the testing, anyway), I'm left to rely on the feedback my body gives me. I may get one of those heartrate monitors as a tool to help me keep track of what's happening, though.