I'm pretty sure if the writers granted your every wish, you would've found something else to bitch about.
There's really no need to be a dick.
Plot holes are plot holes. Rushing the story to get it out the door was the artist's choice they decided to make. When you put your work out for public consumption, you do it with the expectation that it will endure criticism.
Did they make an epic show? Yes. Did they convert the intricate plot weavings of another writer to TV well? For years, yes. Was it a visual masterpiece? Certainly.
Did they leave a bunch of Chekov's guns lying around? Absolutely. Did they rush their ending and leave plot threads hanging and make overly sudden plot turns? Clearly.
I've said it before, I didn't have any "wishes" for the ending*, other than really great storytelling to get there. If the series would've ended after the Battle of Winterfell, I'd have likely have left overwhelmingly happy and forgiving of things left hanging at that point. But the Battle of Winterfell and the Battle of King's Landing could've been two complete seasons, and by not doing so, there was a lot of storytelling missed.
*I wanted Jon and Tyrion to survive the end, and to lesser degrees Arya and Sam, but even if they'd died, had it made sense for the story, I'd have been okay with it.