In truth it was the best thing that could have happened to her, otherwise she would have never gotten the role on All in the Family.
From that point on she took off in a way that was nothing less than meteoric and allowed her to create a legacy that many people have picked up on in various stages of her life.
There were no frills, Sally was the only dancer, and the idea was to make it as funny as possible while making it look like it was done on a shoestring budget.