Yes ? I mean, she is the only one whom Sensei offered to marry in the first minutes of meeting, of course, you can say that this is just his fetish for maids, but I believe that the Uta factor is important here. Also, it seems that in the competition between Yasu and Rin during the dorm war, it was recognized that Uta was the most sexually attracted to Sensei.Is Sensei's attraction to Uta any more special than his attraction to everyone else?
I don't think it's impossible but we need more than just similar hair color to really justify this theory.
And finally, as I said in the first message, this theory is based on the theory of a mandatory and universal connection with Sensei, and this is the only suitable connection that I can give to Uta who lived until the last couple of years (?) somewhere far away from Kumon mi .