I honestly think he hasn’t finished the books because he’s got no idea himself how to actually end it. And after the backlash the show got, he’s now pretty sure it shouldn’t end like that…
It’s worse than that: there does not exist a good way to end it. He started too many plot threads and now it’s impossible to end them all in a satisfying way.
I mean, it was Martin’s plan, but the writers took the most stupid and lazy routes to get there.
I honestly think he hasn’t finished the books because he’s got no idea himself how to actually end it. And after the backlash the show got, he’s now pretty sure it shouldn’t end like that…
It’s worse than that: there does not exist a good way to end it. He started too many plot threads and now it’s impossible to end them all in a satisfying way.