For Deron it's merely a way to play competitive basketball until the issues get resolved. It's like "low" paid training camp and he's coming off injury so he needs it. But the contract stipulates he says sayonara once the lockout is over.
The spin has been that other players could do this which would put pressure on the owners in negotiations. That's the ploy. But owners are not going to feel pressure since no significant players will sign longterm deals.
Protecting your (continually depreciating asset for which you can claim a loss that adds up to tens of millions of dollars every year) asset (injury) isn't incentive?