Basically, the author claims that Elinor Donahue’s character was out of sync with what TAGS would become, but she made a good impact.
https://thiswastv.com/2012/08/09/women-in-the-box-ellie-walker-the-andy-griffith-show/

The article mentions Andy Griffith “wrote” for Donahue’s character, but I thought AG never wrote any episodes.

Basically, the author claims that Elinor Donahue’s character was out of sync with what TAGS would become, but she made a good impact.
https://thiswastv.com/2012/08/09/women-in-the-box-ellie-walker-the-andy-griffith-show/

The article mentions Andy Griffith “wrote” for Donahue’s character, but I thought AG never wrote any episodes.

From the linked article you provide:

"The Andy Griffith Show was never designed to carry the weight of social commentary and the character of Ellie wasn’t designed to do anything else"

I think that pretty well summarizes it. I don't think that most people tuning in were looking for social reform, nor were the sponsors eager to have their products associated with contentious issues.

Good information!