Kindly air it for an hour. Thirty minutes is too less to immerse into the divinity. Moreover, the ad too is killing the charm. The epic has depth of one yug. How can it be summarized in half an hour screening?
Besides, each character in Ramayan has his own sacrificial story which can't be narrated in such short span. Last but not the least, Ravan is highly knowledgeable and a pious soul. It was just his treachery to embrace death through lord Narayan to attain moksha. For him, Sita was highly revered. So please take info from rich sources as well.