Chris when someone makes a categorical statement that Morihei Ueshiba didn't speak of ka without mi they had better be able to back it up. It doesn't make any difference if it is in romaji or kana or kanji . Either he did or he didn't.
He did - in that Mark was referring specifically to the paired kanji for Fire and Water - not phonetic syllables (or so I read his intentions).
Ueshiba cited that pair repeatedly and incessantly, all through "Take Musu Aiki".