"Blueprint Multiplayer" Video Series is teaching a lot of wrong things

Just had another user post images in Unreal Slackers, littered with stuff that this tutorial series teaches.

When are you finally going to redo this tutorial, Epic? Or at least take this one offline?

isn’t it embarrassing that this exists on your official YouTube channel for like what, 7 years already? People literally learn that you have trouble using your own Engine.