Glad you caught this action...that was a pretty good fight and remember it well. Ultimately, we stood there on the island for a bit but didnt have enough time to get our siege equipment up. We got rolled over by 30+. We could have just ran for it, but Guardians stood and tried to take on 5x our numbers.
If I had to do it over again - I'd have us run all the way to other side and find high ground. We just got AoE'd down on the island and no room to kite and kill the overextend enemies. Good video though - thank you for posting.