Some of the exercises remind of qi-gong
This reminds me of something I wish would be voiced more:
"Ki development exercises" in any tradition, be it Ueshiba's training, Tada's training, or some Chinese guy's training, are by definition "qigong." A lot of times people try to make some distinction, and I think there is no distinction that should be made.
Qigong is what we are doing when we do funekogi undo, furitama, or receiving pushes while standing.
What qigongs are part of aikido and what are not is a great topic, thanks for posting.