There's very little on your list that is incoherent or illogical.
Can you really not get why you might, for instance, hide people in a secure underground structure in your fortified building when being attacked by an army? I'm not sure why you think using the firewall to try to stop the enemy getting to the walls is illogical and surely you're just being obtuse regarding the Sansa comment? As for Arya, and this criticism has come up a few times, I'm not sure why the magic, shape changing, super assassin stealth attacking someone is surprising people so much.
I do think the dragonfire resistance was pretty inconsistent against internal logic, but they do have something of an unconvincing (It's magic!") get out card. That's not how I'd have used a cavalry, but it's not inconsistent with standard Dothraki "run at them like a lunatic" tactics I don't think.
The writing has certainly had its flaws for some time, but I think a good chunk of your points above are a little unfair.