I agree with your positive sentiment but the game still has to sell copies and make money before you can say its a financial success for Obsidian. The money committed from KS is development costs. End of the day I firmly believe that Obsidian wants to make this game but they also would want to make money for themselves. That will determine whether these types of development models continue. I am confidant it will sell well.
They will all get paid salary from kickstarter backers too I would think so. I think worst thing that could happen is they break even with no lost at all because they met all the goals they wanted from Kickstarter backers. I could be wrong...