That article from vulture was chopped up from the Hollywood Reporter. It’s misleading.
Here’s the actual paragraph from the original article.
But since Barr would be entitled to substantial fees and backend on any spin-off of Roseanne (the original series was created by Matt Williams but it is also credited as being "based upon a character created by Barr”), she must waive those rights before any such show could proceed. With Roseanne having tentatively agreed to do so, now the negotiation is over what, if any, one-time payment Barr should receive as “go-away money,” as one source puts it.