Star Plus — don't quit surbhi chandna in ishaqbaaz shivika track trp raised. then why generation leap

Because of surbhi chandna and nakul jodi the trp has been raised without promo and repeat. Gul mam say trp is not raising so we are going for generation leap and change the female lead.
We want to ask a question to gul mam and star plus channel because of shivika track the trp raised and many of fans not watching ishaqbaaz in tv or hotstar after then also trp raised. Now you can continue with surbhi chandna and nakul as jodi. No needed generation leap in ishaqbaaz