I'm sure they, and a lot of other players believe that the owners aren't going to give in this time. If you believe that to be the case, then the lockout is merely postponing the inevitable while money is lost on inflated contracts that that'll never be seen again. The thinking may be, "let's get this over with so I can at least make the $600K (or whatever my contract calls for) this season before the hammer comes down".
Commodore is probably on the first one-way deal of his career. This is probably his only chance to make some big money (I consider $515K big money) before there's a new CBA. He could end up being bought out for a fraction of that under a new CBA. I doubt 3rd pair dmen will make that much. Ference is on the final year of his $625K contract. He could see his salary cut in half under a new CBA. If the lockout lasts a full season, Phaneuf will be taking one of these guys spots and they'll never play for the Flames again. After making it to the finals, that's a bitter pill to swallow.
Gelinas is on the last year of his deal and he's scheduled to make $1.95 million. When the CBA is resolved, he'll probably be 35 years old looking to catch on somewhere as an UFA. He scored 35 points last season and he'll have been a year out of hockey. He's taking a huge hit by the lockout, and losing money that was likely carefully budgeted into his retirement. He has no chance of recovering it.