asked: "I completely agree. Thing is, a lot of viewers only think of Tyrion as a "clever snarky (p)imp lol" and those viewers also tend to see him as a mouthpiece for the author/writers and treat his opinions as facts. So, even if the writers intended this line as some sort of "subtle" commentary on sexism (and I don't think they were, just like with Arya's line), by giving such a line to Tyrion, they just ensured that the point would be completely lost on a lot of people."
Yes, exactly. Tyrion is hugely popular and liked- people see him as the hero. So when he says it, there is nothing subversive about it- people cheer him on for putting Cersei down. I don’t think it was intended as a subtle commentary on sexism at all. I wish it was, but the tone was all wrong.