Well I don't thing dogs design has any place in a raid. Most of these puzzle encounter need to be curbed out into actual raid bosses. People like actual raid bosses, just ask basically an MMO raider or even this community. People like fighting a tower monster that feels like you are in way over your leage but you pull together and kill the SoB. Its one of my best moments in doing Duty Finder Savage content in FFXIV where you finally clear with pugs. First thing I see in the chat logs. "Thank god!" "YYYYEEEEEESSS" "I FING LOVE YOU GUYS!" "FIIIINAAAAALLLLY!!!" They don't happen in Destiny. Raids are generally too easy for that to happen and don't feel like a challenge or epic, they are... tedious.