There are two main reasons why Hugo’s taunts aren’t used like Qs are.
Hugo: 86; with 1 taunt - 80; 2 taunts - 74; 3 taunts - 69; 4 taunts - 63
Q:---- 93; with 1 taunt - 76; 2 taunts - 65; 3 taunts - 54
So right off the bat, you need to do the taunts 4 times rather than Q’s 3, and the percentage each taunt increases health isn’t nearly as great. The first taunt by Q increases his defense by 22.3%, while the first taunt by Hugo gives 7.5% (it takes 3 Hugo taunts to equal the first Q taunt) . So when Q taunts, its worth it, while with Hugo, it isn’t worth it until you’ve done it 4 times. And the chances of you getting to 4 is unlikely.
Secondly, unlike Q who’s best played defensively, you HAVE TO stay on your opponents ass all the time as Hugo. When someone faces off against Q, they keep on him, pressuring him and constantly being on the attack. Against Hugo, they keep their distance, so by not pressuring you’re doing the opponent a favour.