Statue of Limitation
Member
Yeah was about to post that link. It clearly was a design decision from ND to make the partner invisible to enemies.
"If the buddy could jump out of cover and give you away, you could see the YouTubers saying 'fuck you, Ellie.' At that point, we'd broken the relationship between Ellie and the player, and that's something we never wanted to do."
While that makes sense, I think ND should have capable of finding a way around it - its the one weak part of the game for me.