All three. All three were specifically not disallowable under the NHL rulebook.
Goal one was incidental contact with the goalie before the shot was taken. Murray had time to set again, the shot ricochets off Bastian and in. No way the ref could have even seen the play, since Murray did not physically move and the only part of his body affected was his skate, which maybe moved between one and two inches. This was the only goal where the rulebook is unclear enough that it could have been taken off, however.
Goal two had Murray several yards out of the crease. Tatar is skating around the back of the net. Murray realizes he gave the puck away at the same time Tatar tries to skate back into the play. They bump lightly and Murray dives and starts yelling at the ref as the puck goes in the net. Murray was not in a space which was entitled to him, and Tatar is not even looking at Murray when they bump. There is absolutely nothing in the rulebook which suggests incidental contact with a goalie yards away from the crease is a penalty or grounds to disallow a goal. In fact, Murray should clearly have been called for a dive. More pressingly, the rule is that intentional (or unintentional) goalie interference is a penalty -- so why was the goal disallowed but Tatar not sent to the box? It was almost as if the refs knew Tatar did nothing illegal, but as soon as they wiped off the goal they didn't realize they had contradicted their own argument.
Goal three had Haula kick the puck from the side of the crease towards the middle, hoping a Devil teammate would bang it home. The kick was sideways. The NHL rulebook does not state "a kicking motion" but rather specifies "a kicking motion towards the net" as illegal when scoring a goal. This was not a kicking motion towards the net, and furthermore the puck then contacted not just one but two Leafs players before going in. There was no cause whatsoever to disallow this goal.
I would like to see any of the disallowed goals explained using the NHL rulebook. The first goal was admittedly murky, and perhaps a bad interpretation of the actual rules. The last two goals were absolutely good goals going by the actual NHL rules.
The refereeing in this game was amateur and inexcusable. Again, the Devils fans were absolutely 100% wrong with throwing items on the ice in frustration. But how do we discuss this without also realizing the obvious fact that the refs filled the arena with kerosene and then lit the wick? It was a shameful way to end a 13-game win streak which was one of the top feel-good stories in the NHL thus far this season.
A family of four going to a Devils game costs well over $500 in sum. Including food and travel expense the cost could very well go much higher. There has to be some consideration. Let the players decide the outcome of the game which everyone pays good money to see! No one paid to see the referees take victory away from the Devils and hand it to the Leafs by bending the NHL rulebook in untenable directions to favor the bigger-market visitors.