Hey Mike,
How about the most assinine call in the history of poker! A novice player off the street would have enough sense to either fold or raise with no pair! How in the world could any poker player call a 12,000 bet with no pair?
How about the placement of the muck? The flop was even backwards! That was a great, "What not to do" video, for the players and the dealer
How bad the call is depends on how well Tobias knows the tendencies of Roland. I'm not saying I'm a fan of it, and I don't know Roland well enough to know if it would apply. But there are players, who when called, will muck their hand without showing it if they think it is a losing hand. It allows you to win without risking more chips.
In terms of the ruling, everything I say below is based on there not being any house rules which would change this decision.
I would rule Roland's hand dead. Rule 11 (well, current rule 11, it seems like some people know the new rules already - I haven't seen them yet) states: "At the end of last round of betting, the player who made the last aggressive action in that betting round must show first."
AT WHAT POINT DID ROLAND SHOW HIS COMPLETE HAND?At 1:17 I see him show ONE card, not his hand. I don't think there is a "show one, show both" rule, which would mean that you need to turn over both cards if either is turned over, so I don't think the dealer should intervene and turn over the other card. It is up to the player to show both cards.
At 1:23 it seems like he is confirming that the dealer told him to show 2 cards (he holds up 2 fingers, and I can't think of anything other than this being him asking "2 cards?", unless he is giving the finger to the dealer).
At 1:33 Roland puts his cards into the muck. IMO, his hand is dead at that point.
At 1:35 (maybe 1:36), THE DEALER turns over Rolands cards.
This does not fall under rule 10 as it was not obviously the winning hand, and both cards had not been tabled. This does not fall under rule 9 as this was not an all-in, so cards did not need to be exposed.
The Hendon Mob Verdict says, in part: "The dealer acted correctly to enforce the rule that the cards should be shown"
If this is a rule, then I would like to see it. I don't see any such rule in the current TDA rules. If there is a rule that says that the cards must be shown in this situation, then I would change my mind and rule that the hand is live. But unless there is such a rule, I think the hand is dead and would rule that way.
Added the following after my initial post (and also modified some of the above to hopefully clarify some things) :
I see some discussion in the Henderson Mob thread that Tobias asked to see the hand. This brings up another issue, but it would depend on how this was asked. Did he tell the dealer that he wanted to see the hand, or did he ask Roland to show him the hand? Very different. Saying "I'd like to see your hand" to a player is different than saying "I'd like that hand to be shown" to the dealer.