He has 50 points in 57 play off games and he's primarily a play maker, he hasn't been the main issue with the leafs not winning in the play offs, most of it has been goaltending and poor team structure. Marner has been relatively good in the play offs and is almost a PPG. You mention 11 goals well the guy is primarily a play maker of course he wont score a lot of goals. You're creating a narrative just like the media has which is a false one by a bunch of "supposed" hockey journalists in toronto, who in reality know f*** all about the sport and have been running players out of town for decades.
Watch the games and you'll realize your entire post is wrong
Goaltending has been fine, it's literally been the offence. The team defence and goaltending have done their jobs, the star forwards have failed. They held Boston to 2 or fewer goals 4 times this year and lost the series.
Marner has sucked in the playoffs, he was good under Babcock, in the Keefe years he's been horrible. He padded his stats in the first 3 games of the playoffs last year and was a ghost the rest of the playoff.
He doesn't go into the corners even when he's clearly winning the race, he makes horrible turn overs whenever he's pressured in the playoffs, the iconic flip dumps vs Montreal and throwing muffins up the middle when someone is gonna lay the body on him. He had an opportunity to seal game 7 but got terrified of going to the net, after Swayman literally passed him the puck behind the net.