Interesting article. I don't agree with that people wanted The Cosby Show in 1989 though as it was quite close to the end of it's run at that time.
What the audience really wanted at that time was youth oriented soap operas such as
Beverly Hills 90210 which premiered in 1990 and became a smash hit!
Also as for Cookie on Empire, I saw her as having the Alexis role on that soap. That is who the character reminded me of, not Blake's sister!
In fact
Empire in the first season reminded me of a cross between the following 1980s smash hit shows:
Dallas
Similar family dynamic with two parents, three sons.
Dynasty
Mother and father are divorced and there is lots of passion still lingering underneath the surface when mother comes back but father now has a new fiancé/wife that is standing in their way.
Fame
Lots of music numbers on the show.
The Cosby Show
The show is about an African American family.