The only thing that's tough is it does seem like everyone really likes Quinn as a guy, so it's unfortunate it didn't work out
But he has absolutely no track record of success at this level, the 2021 Rangers weren't as fully stocked as they are today but they still had Panarin, Fox, Shesterkin, Trouba, Zibanejad, and Kreider and paced for 39 wins in a full season, he just isn't a good NHL head coach
Maybe he'd be a good AC as the "good cop" to a hard-ass HC, but he can't be in charge of the team if you want to win