I still maintain that SJB's very best scenes as Carly occurred when she got into that huge argument with Tony in late 1997 when she told him that her baby was fathered by Jason and not him. She won the Emmy in 1998 for those scenes (at least they were on her reel).
I agree and disagree on this point.
On the one hand, it would appear the there was a Nielson based research project published in 1974 that suggested that young people should be a target audience because they had less brand loyalty and were therefore more suggestive when it came to advertising. The immediate result was seen in CBS's historic "rural purge" where they cancelled older skewing shows like Green Acres in favor of the Norman Lear shows like All in the Family.
However, in the 40 years since that study nobody has ever tried to replicate the finding. Grocery shopping has changed so much with the advent of big box stores and online shopping, that basing decisions on how people did their marketing in 1974 seems obsolete.
On the other hand, I think that fans have over exaggerated the misuse of legendary characters. In fact, Don Hastings credited Goutman on his achievements in the final episodes in the NY TImes and Kathryn Hays said in EW, "We had been given six months warning, and our executive producer Chris Goutman absolutely insisted that we veterans drive story all the way to the end." So, while I can see that fans of Lisa would be disappointed about her ending, the same was not true of all legendary characters, nor was it the universal belief of the actors.