For years paralysis resulting directly from injuries to the spinal cord has been attributed to problems in the neural system and, as such, the focus for the treatment of such paralysis has been focused more on the neurons than anywhere else. Maybe the reason why there has been very little progress in this direction of treatment (no one has ever really recovered from 'permanent paralysis' by following this particular approach) is because it is the wrong way as I hope these brilliant researchers will demonstrate soon enough.
I look ahead to the day when artificial neuron 'bridges' can span the gap across injuries to reconnect the intact upper spinal cord and the intact lower spinal cord to restore complete functionality. As electronics become miniaturized, it should be possible to have a 'sensor' on one side of the injury and a 'repeater' on the other side of the injury. Electronics are fast enough that the delays in transmission should not be perceptable.