I still think a resisting uke provides a level of realism for testing a technique. I mean the uke should not cooperate when you apply a technique.
That is difficult to show in a video. Real resistance sometimes results in really "rude" solutions
It's not that the techniques change significantly (except for speed and force, maybe), but in practice it can lead to unacceptable risks. I'll try some more videos, and we'll see if I get closer to capturing what I mean.