What's evident is that the BLM skirted around a very direct question. No assumption there. The Tank choosing to turn it into an argument, instead of letting the BLM speak for themselves, gave the latter a further crutch to continue dodging. Initial comment ("it doesn't matter lets do this") implies they don't care about how they play or taking any advice since they only care about clearing the dungeon, and the last comment cements that view (we can start worrying about my rotation if we start wiping). This fits right in with the stock response these type of threads usually get. "As long as the dungeon is cleared who cares how people are playing! It's only Duty Finder!"