I think I would have avoided the "life goes on ending" too. This would mean reversing the the battle against the dead and the battle of King's Landing. I think the landscape will be fundamentally altered after the dead run through Westeros and change the way life is. But we see "business as usual" at the end and as another poster noted, Tyrion is sitting in King's Landing making dick jokes with his buddy.
BTW, glowbug, I like your idea a lot about Dany targeting the Lannister soldiers and Cersei, not caring who got hurt in the process. It makes a hell of a lot more sense (while still being in character) than randomly targeting civilians. As noted, it would still be the wrong decision but it would make Jon's waffling about making the right decision make sense. It would show Dany not to be a two-dimensional villain but would legitimately raise the possibility that she might become worse as she tries to break the wheel across the world. But they chose to make Dany twirl her mustache instead.
As evil and ruthless as Tywin was, he understood one important lesson well. When your enemy bends the knee, you are supposed to help them back up. But Dany would break that rule by killing her enemies who surrender to her. It's like how her father broke the rules by not allowing Ned's father and brother a true trial by combat and demanding that Ned and Robert be given over to him by Jon Arryn for execution.