just back from vacation and reading this thread with interest.
Ukeme should be effective i.e. a response to the technique coupled with an aattempt to regain correct positioning in relation to tori; ultimately leading to kaeshi-waza.
Big flying ukeme don't acheive this so ineither use or teach them.
When you know how to run,it's a natural thing to want to practise how to run
You don't run through your entire life but at one run you have to learn it.