This was actually from an older source. I think it was presented as the first usage of 'aiki' in a Japanese document.
Too bad I don't know where I saw that, but it was not considered a favorable situation, as I recall.
Well they were talking about historical definitions and I think maybe they give the source or at least Shishida gave it somewhere in another article. He is a bit of a budo historian. I'll check later.
Stalemate is always an unfavorable situation but you can see how that would be called harmonized energy. I also seem to recall the caveat that the to in stalemate were masters of their art.