I don't care about this detail much, but it was said that it would be stupidly hard to make swords out of dragonglass so they only mass produced axes, spears and arrow heads. That's why the dothracki are using metal weapons still, because their weapons couldn't be mass produced in dragonglass. So technically that sword was special. But it's one of those things that don't really matter much. It was just a bit where directors thought her picking up a sword would be more badass than a spear or an ax and... Meh.I mean for this army, EVERY jobber sword or bow or arrow without a name and well known character attached is made of dragon glass.
He was deep in thought, alone and facing the other direction. A normal person could have snuck up on him. She didn't literally tap him on the shoulder, she got within 6 feet.Literally the first thing Jon says to her in this season is "How'd you sneak up on me?"
Arguably, LF didn't know she was sneaking up on him, he knew what her endpoint was and waited accordingly.
That would be a pretty blind argument. His plan wouldn't work if he didn't know that Arya was following him. He wouldn't be able to get her to overhear his conversations at any given moment if he didn't know he was being followed at that time.
There was also the bit in S7 where she snuck past two guards at winterfell the second they took their eye off her.
Those guards were complete jobbers and literally walked away from her with a "promise to stay right here" bit.
Like, you can recognize that that scene came out of nowhere and still enjoy the episode. Or at least recognize where the people criticizing it are coming from. I honestly expected Arya to be the one to kill the NK but not like fucking that.
And, let me be clear: Arya being shown not to be a perfect assassin repeatedly after incomplete training with the faceless men was interesting. It's not a negative against her character. The library scene was impactful because she wasn't a perfect stealthy assassin. It was touch and go. She struggled.