Had several defenses today. Got to defend against Surt three times. One was ridiculous Vanguard on Emerald/Obsidian base. That was pointless. The other two were pretty equal. Obsidian Surt vs Emerald/Obsidian and Harbinger vs good Harbinger base. Ragnarok did not destroy equal level towers with ragnarok. One we won, the other the towers survived and got destroyed by UVS on a follow up. So I would call it one win for the defense and then a stalemate.
Although UVS did break the stalemate.
Edit. The Obsidian I defended alone. The Harbinger, there were two defenders. The Vanguard we could have had ten defenders and it wouldn’t have mattered.