Look, we're not going to agree, but these blinders need to be put away.
A brutal turnover for an ENG, sulking in the neutral zone to completely abandon your position only to lead to a lazy backcheck you give up on isn't okay. These aren't "minor mistakes" these are major gaffes leading to critical GA from a top player who doesn't look the part recently.
The breakdown, especially SH, shows a lack of understanding our systems and Marners role in the play. Nothing more needs to be said on it.
I understand our system and Marner's role in the play perfectly. You're the one expecting to play man on man defense with less men than the other team. The system does not say that Brodie should make a bad pinch he'll never make in time on the trailing forward in the neutral zone on the PK, and leave two attacking forwards behind him. And even in some weird world where it did, hockey is about more than systems. You need to understand and adapt to the unique situations that develop. They were on the PK, both forwards were in the neutral zone already after expecting a breakout pass that missed and went straight to the other team, Brodie was never going to make the pinch in time, and he'd risk opening up a 2 on 1 when the only real alternative if he didn't pinch was a 2v2 turning into a 3v3, which you want every time on the PK. That was not the play in that situation, regardless of whatever you think the system is. Marner should have read the play forming out of Brodie's bad decision quicker, but that should not have been his role in the play in the first place.
Marner made two minor mistakes on the goals against. What you describe aren't minor mistakes, but what you describe is wildly inaccurate. It wasn't a "brutal turnover". It was a reasonable one foot pass in the offensive zone to our 2nd best goal scorer who was calling for a pass while down a goal in the last minute with no other passing options and everybody going to the net. He didn't "sulk in the neutral zone", "abandon his position", have a "lazy backcheck", or "give up". He was half a second late reacting to a bad pinch by our defenseman after the other defenseman flubbed the breakout pass, and wasn't able to catch a speedy forward with a jump on him. You're letting the result skew your perception of the actual action.
The only blinders that seem to be on are blinders to everybody's else's contributions to the goals against, in order to incorrectly hyperbolize Marner's.
Taking the penalty that they score on? Who cares.
Doing nothing all game so that we need to pull the goalie? Who cares.
Flubbing the pass? Who cares.
Making a bad pinch and causing a 2 on 1? Who cares.
Going into a bad area and calling for a pass? Who cares.
Falling down and not creating any passing lanes when you have an extra player? Who cares.
But Marner breathes and out come the pitchforks.
He's struggled through patches this year, and it wasn't a particularly good game for him, but so much is being hyperbolized, and there are much bigger problems than Marner - in those goals, in this game, and throughout this season.