*SPOILERS* Why would I watch the rest?
Am I supposed to actually watch the remaining 3 episodes? What for? Fighting over the Iron Throne again? How am I supposed to care about that at this point? The white walkers were in the first scene of the first episode, before the titles, and they won't even be in the last 3 episodes? How does that make sense? They didn't even make it beyond Winterfell, just a short stroll from the Wall and only 3 episodes after they broke through. No lasting damage to the realm, no Long Night, winter came and ended, blink and you'll miss it. And now we're back to politicking which the whole POINT of the white walker threat was they weren't supposed to be doing in the first place.
7 seasons of buildup just to be immediately defeated as soon as they broke through. It's like they deliberately sabotaged this story. Episode 3 was the series finale as far as I'm concerned, I won't watch the rest.