When tori does that to me, they usually get dumped on their ass through the hand they are putting through their "impossible nikyo", not because I'm being mean, but because any time you drag uke anywhere, uke can take you if uke is allowed (or required) to be honest.
Again, there are no absolutes. Any time you do anything, you're vulnerable to a counter. As I mentioned earlier on one thread or another, watching MMA does have it's plusses- It reveals that even world champion fighters land techniques a fraction of the times they attempt them.
This is henka waza, so it's difficult to test repeatedly. But you and I both know if we did it 10 times, you are going to dump me X times and I'm going to drag you X times.