Ridiculous Bronn pop-up

It exposed his true nature. I had hopes that under all of the tough sellsword talk, he considered the Lannister brothers to be his friends.

It was hilarious, best lines for about two seasons

That scene was jarring and weird. Bronn is my favorite character, but that was my absolute least favorite Bronn scene ever.

That's why the scene. Apparently Lena Headey won't don't a scene where Jerome Flynn is involved in anyway. Due to a relationship that ended over 15 years ago.

So they have no choice but to essentially write him out.

Bronn: "So many questions. You may have noticed that they were sitting in an inn at the time, totally oblivious. No security to speak of. And at that time of night chances are most people have turned in which also means no witnesses.

Doesn't look to me that Tyrion is much of a priority to his Queen. This is good because I've been waiting a long fookin' time to finally get what's mine. I think I made it clear to those two nurks what my position is and what I'm due.

There are plenty of nooks and crannies to hide in the North, so I won't be making myself a target. Can't say the same about those two. I kept well clear of the action during the night battle at Winterfell. I was kind of assuming that they would all end up dead but looks like Jon and company are pretty lucky."

1. He wasn't actually in the castle itself; they were in WinterTown, outside the castle.
2. He probably had been watching the castle. All those dumb scenes with Brienne watching for the candle did have a point after all.
3. He probably didn't, but took a calculated guess. Given the heavy casualties sustained in the battle, he figured not many people would have been out and about.
4. Because Jamie was with Tyrion.
5. The smallfolk wouldn't know who Bronn is. Half the people at Winterfell weren't from the North, so it would have meant nothing to the common people to see a wealthy southerner traipsing around. They would have figured he was part of Dany's retinue and ignored him.

Jaime and Tyrion weren't at Winterfell. The scene right before showed them riding up on Wintetown. They were at an inn there. Sort of stupid to have them suddenly there, then suddenly back at Winterfell.

Wintetown, not Winterfell. And do you think the hand of the king travels without guards?
A very shoehorned appearance and all because the want to wrap up Bronn as a sellsword with a downward arc.

What's best for him is to never appear again on this turned-out-to-be shit show.