No question a Clueless Dubas and him getting played to hand out full no movement contracts on what 2nd bridge RFA contracts, should be what many Leaf fans should blame rather than Marner himself. IMO
If Marner had a limited NTC than our GM Treliving would have Mikko Rantanen in the Leafs line-up right now.
Current Leafs management was prepared and willing to move on from Mitch. However by invoking his NMC even though he was unwanted by Toronto, it was his right..
Now if he walks away at end of season Leaf Nation getting NO RETURN on investment is what is going to follow Marner the rest of his career should he depart that will bring on the wrath.
This can still have a happy ending if the Leafs do go on to win the
Stanley Cup this year, then re-signed or departing the Marner saga will have a different impact on him and Leafs Nation. This is the outcome I'm hoping for.