This is a commercial drama and the main purpose of it is to get TRPs. The reason why they marketed it as a Romance drama was because Wahaj got huge popularity because of chemistry at that time and by marketing it as a romance drama they could get some of the viewership of his previous show. And also they might have known that when they market a drama as a romance drama, audience will wait for the romance to start and start watching the drama and at least for 10-12 episodes they watch it in hope of getting the romance. When they start realizing it as a non romance drama they still watch it for few more episodes thinking that romance might start. At last, when they realize it completely that there will be no romance by that time they are already half way through the drama and also considering the fact that it is a limited series, they continue to watch it ultimately giving the drama TRPs.