Why are y’all so salty. The story was never yuri, it was never about yuri, it was never tagged yuri, it doesn’t need to be yuri. Why would you expect it to be yuri?
Konatsu has never been the best at handling her emotions, that’s her whole thing from the beginning. She has always held herself back and the strain from that is finally becoming too much. This has always been where her character was going, she’s learning to be selfish. Character development doesn’t always mean that the character is moving towards an objective good, it means the character is reevaluating they’re previous behavior and coming to understand themselves better.
And the whole thing about alcohol, I don’t know exactly how things are in your country, but in a lot of Asian countries the barrier is quite high. There’s a lot of social stigma to drinking alcohol, especially when you’re underaged and a girl. So it makes sense for sheltered girl like Honami to feel uncomfortable with it. And the whole point of that scene wasn’t the alcohol, it was about her struggle to be true to herself which has been her arc for a couple of chapters now.