I was wondering why they showed the wildfire like 3 times
They telegraphed THE WILDFIRE and made sure to highlight it. But part of me thinks Cersei gonna fukk up with the Wildfire and Dany's dragons will be the replacement for the Wildfire. Or it might be a combo of Wildfire & Dany's dragons to defeat the White Walkers.
I know understand why they only want to do 2 more seasons, with a total of 15 episodes. We are reaching the end of the story. They just cut out all of the side stories that GRRM has in the book and focused on main plots etc.
The ending should be epic.