I don't know if anyone else has experienced this but when I train in dojo with "highly responsive" ukemi uke ends up in a heap on the mat. My dojo doesn't do the "highly responsive" thing and our Aikido is about using a relaxed body more than taisabaki and when we train with "responsive" people they get hurt.
As I see it they're not actually responsive; they actually make the technique for tori so when someone actually does a technique on them it's a totally new experience and you are literally throwing a total beginner who might be nidan or sandan.
That's if you can throw them. Many of them will make the attack and then start running immediately and all you can do is move to keep up with them, then for no reason to do with you their legs suddenly fly up from under them and they fall over. I've lost patience with people and "thrown" them with one finger pressed lightly on the nape of their neck and been congratulated for it. Anything will work with a responsive uke, you can take your hand out of your centre and throw them with a flick of your wrist.
The same goes for techniques: I tend to find that the guys that do train in a "responsive" way can't actually move anyone who chooses not to respond. By this I don't mean go tense or resist I mean someone who just stands there relaxed. Also I tend to think that if I'm moving around in such a way that I can choose to counter I may as well not move in the first place or I may as well counter them. In not doing so I'm hiding an important fact from them; my posture isn't broken and neither is my balance.
I guess I am not sure about your definition of 'highly responsive' it sounds like you are describing 'overly responsive' especially if they are throwing themselves without any imput from you. I know personally I want to feel that I have had at least something to do with their fall/roll
And about them getting hurt, what is it they or you do for that to happen, just curious. Are they unable to ukemi correctly to escape the technique or is the technique being 'over' applied?
I must get out more and experience some of this
I have had students who have come to me from different styles and they haven't been taught to 'follow' the technique in the way that we have. They are pretty immobile, and difficult for the lower grade students to cope with. However, once you know what you are doing they are easily dealt with too.
My guess is that we train in different ways to try and reach a similar end goal.