Because of giving a love angle so much importance.
It's the only place you lost the attention of your audience.
This type of movies comes with an emotion and feel and you cannot mess up the love for the country with a love story of humans.
If u dont have that much plot to pull it so much u should have given extra in the field of their struggle that would also work.
2 star lose only for love angle.
Orelse it is a awesome series.