I acknowledge there's a debate.

I simply deeply disagree with 5oz pours, and don't consider it "correct". It divides into a bottle a bit more evenly, which can reduce waste a tiny bit. But otherwise all it's doing is lowering wine sales by making the pour look stingy.

It's like cheater pints. People think it's this miracle of revenue generation. But it's more trouble than it's worth and it's just used to paper over bigger problems.