I don't really see that the trilogy cross-over has anything to do with Jorja. The episodes were planned and written way before the premiere aired, so as the "latest attempt,"--I don't really believe that's the case. Try to help? Yes. All Jorja's fault? No, not at all.
I don't think they're blaming Jorja. I think all they're saying is that the return of Sara didn't bring in as many viewers as they hoped. They could also be making excuses as well. They still don't get that many fans are dissatisfied with turns the show has taken.