ps I prefer ukes like these, then (not those who attack the sensei, those who attack the pupil - instance at min 3.05 onward):
It's alredy much more realistic than what I have seen thus far in dojos. Ukes shoudl attack you without regards, and no intention of accommodating you.
I learned this with boxing, so it's that paradigm that is leading (or misguiding) me: only permanent combat training
eventually yields combat awareness.