You are obviously struggling mightily with this and I thought of an explanation that might help you. Here is your argument in a form that makes it obvious how false it is:
"The only reason NFL teams and players fail to reach early contract agreements is when the team thinks that the player isn't going to be good enough, therefore the team can't think much of Hasselbeck's future."
Please, stop making crap up, that is not even close to what I said, I said they do not wait to re-sign top 5 Pro Bowl QBs, you said Matt IS (present tense) that, teams don't wait for that.
As for eating crow, considering Matt has been to 3 Pro Bowls in a decade and has been a top 5 QB maybe 2-3 years out of his whole career I am reasonably certain he will never reach that level again.
And frankly its incredibly unrealistic to think that is that level or will be again.
Seattle has not re-signed him for 1 of 2 reasons:
1) they have no intentions of re-signing him
2) they do not believe he is a top 5 Pro Bowl level QB playing at his best which you claimed he IS (again present tense).
If they believed anything close to what you believe, they would be doing everything in their power to extend his deal, no reason why they would wait.