OK. Great post. We can get this thread going again.
Bas Rutten is one of the most knowledgeable people when it comes to one-on-one empty-hand fighting. That clip demonstrates precisely what this thread is about. And it has nothing to do with "failed execution" of aikido techniques.
It has everything to do with CONTEXT.
Why would anyone every attempt the blends we see in aikido against empty-hand strikes? The risk versus reward is just too high, when more reliable techniques exist.
But add a sword or knife, and you see that those blends are all that you can hope to do (this doesn't mean that they make the situation "easier").
On the other hand, all of the empty-hand techniques and strategies we see in mma are almost certain suicide against a sword or knife.
Additionally, those same empty-handed techniques don't really complement the use of weapons, so why would they be the focus of someone who is primarily interested in using his weapons?
But recognizing this is only part of the puzzle... What are we going to do about it?
How can we use this knowledge to enhance our training?
Going to the next seminar might be a good start. It may solve all your "puzzles" for you.