No, actually the opposite imo. New talent winning will pay off much betetr especially when they build rep over some matches.
As mentioned in the thread, their lack of marketing is going to hurt them most and will probably run them out of business.
The only reason I knew about the challenger's event was that there was a stack of fliers at the gas station i happened to fill up at.
The irony is though- I only know if Strikeforce events are being televised when the UFC has some kind of special on on a saturday, like recent PPV's and such. Then it clicks in my mind "Ooooh counterprogramming, let's see what SF is doing." or I wouldn't have seen a single SF TV event.