I thought the manifesto was based on facts, not supposition. I know in fact that patients can be, and are in, recliners daily.
While working in a nursing home, I often had to care for a few younger people who were declared as being PVS...and being as we did not really know, what they could or could not sense, we always made the effort not to leave them in bed all the time, but rather get them up, seat them in their recliners, and always, always, tell them what we were doing, during their care, so that they would know what was going on...we just had to assume, that they could sense some of what was going on around them...
One young patient, had a hammock, that we installed over her bed, and it was hooked onto very large metal supports at the foot and head end of the bed...then once in it, her parents requested, that if we had time, would we please gently swing the hammock back and forth, kind of like rocking a child...we were always glad to do that...
It was always heartbreaking to see these young people in what was diagnosed as a PVS...but we always did our best to make sure that they were safe, well cared for, clean and dry, and hopefully, if they could sense anything, they sensed that we were there to make their lives as comfortable as possible...
Just my own experience...