Oh the irony because this not well researched at all. LOL And it's only a retcon if you read in more there than what is thereI'm just reminding y'all of the fact that Spock's distant human ancestor was long dead in "Corbomite", but turned out to be her still living mother in "Journey to Babel". The universe hiccuped in between, and we're expected to pick up the pieces. Which we do, pretending that Spock was speaking of her mother all along, even though this is nothing but a clumsy retcon...Are you suggesting that Spock's mother died in one of those episodes?
WNMHGB:
TCM:SPOCK: The fact one of my ancestors married a human female...
Last I checked, parents are ancestors. Where did distant come from?SPOCK: However, it was well played. I regret not having learned more about this Balok. In some manner he was reminiscent of my father.
SCOTT: Then may heaven have helped your mother.
SPOCK: Quite the contrary. She considered herself a very fortunate Earth woman.