Ok then let's not pretend that Jon Snow couldn't have merked him 1v1with his Oathbreaker or whatever his Valyrian sword is called if he and Dany actually articulated a strategy based on targeting him and using her dragon to wreck the wights protecting him. Don't come here with that "only Arya could do it" nonsense.
Best thing they could've done is stay behind the walls with the dragons, light the barriers when the army of the undead approaches and pepper them with dragon fire and fire arrows. If the dragons stayed back, they could prevent them from making that opening through the fire barrier. Deal with the ice dragon when he gets there.
Why not? The NK did not want to fight Jon 1 v 1. He ran away like a bitch.
Before that he was on the dragon. When he fell off ( because they were trying to ram his ass off ), fire didn't kill him. So they tried that.
Jon wanted to fight the NK 1 v 1 when he ran towards him.
Fast forward to the scene at the end.
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Dany is fighting for her life
Jon is fighting for his life
No other decent warrior is anywhere close to Bran, and even if they are, they have no chance getting past any white walkers or wights.
In the end at that moment in time, it was only Arya who could kill him. The NK let his guard down. He thought he had won. He let Theon charge him because he knew this guy is a fucking idiot because he's going to charge at me in the same position for 10 seconds, letting me see right through his defences.
If the NK killed Bran, he probably would have killed our other main characters as well. Maybe Dany would be able to fly away.
Then we would have three more episodes with Cersei and her army defending KL and the NK burning it all down.