A 10-win season would suggest otherwise.
As far as the massive contract he's not gonna deserve - that's got nothing to do with Geno, that's the industry. Both quarterbacks and star defensive linemen are overpaid across the league and teams are just kinda hostage to the situation because you can't succeed without them and the players know it. Geno doesn't deserve a massive contract, but if we're looking at accomplishments, neither do Jared Goff, Baker Mayfield, Justin Herbert, Joe Burrow, Lamar Jackson or any of the other guys in the general "second tier" or quarterbacks (i.e. anyone not named Patrick Mahomes). None of those guys are likely to win more than a single Super Bowl, but you know guys at that level get overpaid all the time. That's where Geno falls. His absolute ceiling is one Super Bowl win and that's it. But you'd have to work pretty hard to convince me that it gets any better out there.
In fairness, I'm on record saying that the Seahawks shouldn't give Geno that enormous contract. But I'm not gonna feel bad if the Seahawks are forced by unfriendly drafts to do so.