Unfortunately, I think you may be right about this, although I don't think he intended it to be a public, "on the record" statement, but rather something that leaked out to people who really wanted to know. That's why I don't think he would have wanted the cellphone video to be posted publicly.
I see a parallel to the situation where Candace Parker was left off the 2016 Olympic team, and after the Olympics an article appeared which contained several quotes from Geno, and also an unattributed paragraph about Candace not playing "inside the sandbox" on the 2012 Olympic team. That is the same modus operandi: a "not for attribution" statement that is almost certainly true, but casts a player (in that case Candace, in this case AEH) in a bad light in order to make Geno's decisions look more justified and less concerning. As a third example, some of the details that leaked out about the reasons for Samarie Walker's departure fit the same pattern.
Personally, I would prefer that a Hall of Fame coach with 11 NC's could be big enough not to feel the need to defend his reputation by disparaging basketball players who are negatively affected by his coaching decisions (and to do so "off the record"). He could have remained silent in all of these situations, and lived with the criticism that the Raouls of the world would inevitably make. But, as some of us recognize, Geno isn't perfect.
In this case, the result is that an 18-year-old young woman is probably going to find it harder to get a basketball scholarship at another school because of the comments that he made.