Answer:
I thought the final episode was beautiful and poignant, especially Roseanne’s monologue. In terms of the storyline being fake, I tend to ignore that fact. In my mind, Darlene is still married to David, Becky is still married to Mark, Bev is still a lesbian, Dan is alive, etc.
All in all I thought it was a great finale, even though the revelation of the storlyine being fake or rewritten was a bit odd.