I'll give my thoughts on the episode as i'm still thinking about a lot and recovering from my finale party yesterday.
I think Bran's powers are still not understood by him but also need to be guided. Similar to Nightcrawler's teleporting ability where he needs to have knowledge of where he's going to teleport and have seen it before so he doesn't teleport in a wall, Bran needs to guided and aimed at what to look at. Given that his training with the original 3eyed Raven was cut short, it's fair to say he's flying blind. While we're told he's got this wide scope of power, it's nothing without knowing how to properly use it.