> The problem with "wanting to lose" in this post is how fake and sentimental that attitude can become, against our best intentions.

Yes. Plus it can seem condescending. I wouldn't want to debate anything with someone adopting some sort of "philosophical master" stance that "through losing" will achieve enlightening. I prefer the other person gets angry if need be, which at least is honest, rather than trying to play some Socratic bullshit on me.

It comes across as "I'm better than you, let me show you that to lose is actually to win".