Imoogi
I think there is a difference between a message, and how events unfold. Some movies, series, or books show the struggles of underdogs, but these underdogs lose their battles.
The messages of these work are against injustices but they choose to depict a more realistic outcome. They are not saying that the fight should stop. In many ways happy endings dull the sense of urgency.
I thought Ep. 3, 5, 9, and 10 had probably the best cases. Ep. 3 for obvious reasons.
Ep. 5 depicted a moral dilemma for YW and I applauded the writers for making her choose the morally dubious decisions. Showing that she is not a saint.
Ep.9 & 10 were great because they didn't have a clear cut "right" vs "wrong". I felt Ep.10 was very good including the judge's decison. I am not saying he was right or wrong, but it showed the problem highlighted by YW towards the end of episode.
This drama despite all the comedy and lighthearted tone tackled serious issues. So, I don't need fluffy, fairy tales.
As for 13 & 14.
The break up itself is not what bothers me. If they break up, the message for me would be anger towards society. The society that is not allowing two people to be together because one is different. What bothered me is the lack of communication. YW has been , if anything, over communicative lol. It is the out of character action that bothered me. What I need to see in the last 2 episodes is them having proper conversation. If they do that, I am OK with any outcome to their relationship.
Minwoo & Seyon though is unforgivable if they end up together. However I think you are too harsh in your assesment about what it means. But, I get the sentiment. It would be a setback.