Prove me wrong. I'm a lore expert on Destiny, so odds are I can refute any argument you provide that favors Destiny. Vegeta and Goku would beat the entire Destiny universe in a fight.
Lets also assume they know the mechanics for the VoG and Crota's End.
-
Goku and Vegeta don't even need to know the raid mechanics. They'd just destroy everything without effort. They are too OP for our guardians and anything else within the Destiny universe