I honestly didn't pay a lot of attention to the boardstate. An argument was happening and I had to Judge based on the scenario described. I didn't look at either player's hand, I think I remember an
Underhanded Designs being on the battlefield (or maybe it was the graveyard), and the argument was only about a specific situation which I addressed. When there's a question or issue, I scan the battlefield to see if anything else will impact what's going on, and since I don't clearly remember anything else of significance being on the battlefield then there must not have been anything of significance on the battlefield.
An example of something significant I would have noticed: if the player who Disintegrated their own artifact creature had had a
Syndicate Trafficker on the battlefield, while I wouldn't have mentioned the better strategy of sacing the artifact creature to it to remove 2 life from being gained (that's coaching), I would have made a mental note of its existence on the battlefield. In order to be prepared to answer any questions asked about how indestructible creatures interact with
Fumigate.