Nylander was overpaid on his UFA contract, but none of the contracts were "insane", and re-signing Matthews and Nylander were two of the best things Treliving has done. Not re-signing Marner is one of the worst things any GM could do. Losing one of the best players in the world in their prime for nothing is fireable on its own. Those 3 players consistently take responsibility, and aren't smug or entitled. You just don't want to acknowledge what actually happens, and expect them to do the same, and say all the ridiculous and untrue things about themselves and their performance that you say about them.
Every player in the league wants as much as they can get, but only Nylander has really taken it on our team.
It's not really about my personal opinion or standards. It's about understanding measures of relative player quality and impact, and a lot of research into how different metrics and characteristics historically correlate with contract valuation. You don't really have any consistent standard, and you keep getting it wrong and then blaming everybody else.