Oh man, sorry to hear the golden gobbo griefed you! I was able to cause a bug myself before DD, but I didn't think anyone would be able to replicate it since it required a very specific and rare combination of item -affixes. I'll eventually need to correct this, but I think the % of people that reach him is about 10-15 of all players (even less who figure out the goblin, and even less those who feed it the required affixes), so it'll wait for the full update which'll pop up sometime next month.
The level spawner is simple in design, just ties prefabs, but I gave it a giant list of clauses, edgecases, special circumstances and so on in order to try and get a good feeling dungeon!
The saves are also very clumsy after the Halls of Pain, so much so they are confirmed to work less than 1/3rd of the time! That's also getting fixed... I hope.
I'm glad you had fun and enjoyed what time you spent playing! The goal now is to iron things out so that not everything starts breaking apart after level 3!