@Sadisticmale - Honestly, just because you read romcoms doesn't mean you're an expert at it. Most likely your thinking of romantic comedies with Western elements mixed into it. These tend to be a lot more plot progressive and more mature characters.
Eastern romcoms tend to be a lot less plot progressive and mature - They prioritize focusing on humor and wholesome content that can't really be used as progression. These tend to be made for instant satisfaction as opposed to immense satisfaction over time like Western influenced romcoms.
While there are Eastern romcoms that do follow plot progression, most don't.