Let's go down that path. Matthews when "healthy" is clearly playing hampered, Hiller completely bombs as a coach, and the Leaf's continue to be a train wreck. As a result, Leaf's end up at the bottom of the Atlantic and give a top 10 pick to BOS (or PHI). They then decide to rebuild, move short term assets at the TDL and move AM and WN summer of 2027 and rebuild around Knies, McKenna and whatever they get back. By moving AM then, he can sign a new deal with where he's traded so he probably has slightly more value than he does right now. WN's value doesn't go down with still have something like 5 years left on his deal. As a result, the Leafs are no worse off than if they decided to rebuild this summer. If they go down that path, the Leafs are doing a tear down rebuild and they're accepting 5+ years of pain and DR's contract isn't a hindrance from the team doing anything.
The only way this is a MAJOR mistake is if the Leafs are good, but Raddysh is terrible and his contract keeps the team from doing what is necessary to get over the top. I think that's unlikely, because Raddysh was a decent 2nd pair d-man before his career year, and I don't see a situation where everything goes well like AM is back to his old self, Hiller get the team playing well, goaltending is solid, and Raddysh is the only thing that holds the team back.
Quick Summary:
Positive view: Leafs bounce back and are at least a bubble team in the murder's row Atlantic. 1st rounder DP surrendered to PHI/BOS is somewhere between 14-19 and the team has at least a punchers chance.
Negative view: 2025-26 performance continues - and the Leafs have to blow it up. Raddysh contract doesn't hurt them at all in this situation.