Since this is the canonical universe, where Super Saiyan 3 is the strongest state aside from Mystic and Fusions, this is a big deal.
This would normally be not as dangerous considering how the gods of the Dragon Ball Universe normally rank in the power scale, until he curb stomps Super Saiyan 3 Goku with a finger. Beerus, who is the God of Destruction and a god which all of the other gods fear. Always Someone Better: Deconstructed and exaggerated.Almighty Janitor: Almost literally ('Almighty' is right) with Whis, who is even stronger than Beerus despite being his retainer.