If you have the video and are not afraid of what it actually shows, one would think you'd have just posted it, instead of cutting and pasting dozens of freeze frames and adding a narrative.. Pretty much everything you said was incorrect. Not only the overarching blaming of Marner for goals that he had little to nothing to do with, but even the specific claims/descriptions of the plays. This is certainly going to be a waste of time, but:
On goal 2, Marner pressures the point, then comes back and immediately engages with his man, pushing him into the corner. He prevents him from getting into a dangerous position, and forces a blind backwards pass through him to the point. A PK takes that every time. The goal-scoring play is opened up afterward with a pass to the opposite side of the ice of Marner, and Benoit ignoring the guy screening his goalie, yet somehow your blame is focused on Marner...
On goal 3, Marner isn't even on the ice. He's getting on the bench with the rest of his line, while the puck is still in Boston's zone and the team is back. You somehow leave out the most critical freeze frame and parts of the play where the scoring chance actually develops...
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Domi wasn't behind because of the change. Domi was ahead of Pastrnak and slowed down and let him pass, despite seeing the defenseman move up. McCabe was up for a hit. Matthews can't push off or gain any speed to get back, 45 seconds before he was shut down in the game and series, and the Boston player skates ahead of him and picks up the puck dribbling into the zone, just out of Brodie's reach. Marner has nothing to do with this.
The rest is you misrepresenting two inconsequential plays, and who/what the bench comments are directed at.