There was a palpable sense of deflation in the room when we were watching it. It had absolutely no bearing on the remaining episodes either, which is really irksome, other than she learned things have to change as part of growing up.
Should have just had that whole arc be her discovering the files, finding her mum, then Hopper figuring out where she’d gone and tracking her down, she runs away in anger, he finds her in the woods, big cathartic moment, (“YOU LIED! FRIENDS DON’T LIE!” “I DID IT TO PROTECT YOU!”), she learns the coming-of-age lesson that way, her and Hop reconcile, now adoptive father-daughter barrel into the last act. No need for shitty cyberpunk Lost Boy homages at all.