I watched one of those supergeek post show analyses and he said that when the Mad King was threatening to burn King’s Landing down he had those firebombs planted all over the city but Jamie killed him before he could set them off. That was what was exploding around the city.
I read all the books and watch the show. I am big Science Fiction and Fantasy fan. Was I disappointed? No, it is a TV show. Nothing more, nothing less.
Could they have done more, sure, but they are winding this down. No ending would have made everyone happy.
Even at it’s worse, in my humble opinion it is the best show on TV hands down. I am happy I came along for the ride.