Sorry to hear you had a bad LA'r experience. Is it possible to work around what the LA'r did and add some more quilting so that you can get the look you'd like?
If you go through with ripping it out, I would suggest that you remove the binding as well. You'll be able to put a new backing & batting so if you send it to a different LA'r they can start fresh and do a good job for you.
I would let your LA'r know you really weren't happy with the work she did. I would like to think that those of us who do LA professionally REALLY want their customer's to be happy. I have ripped the quilting out of customer quilts because a tuck happened on the back or something got messed up w/the tension. Occassionally, we misinterpret what a customer wants (especially if you're getting instructions via email or a written note & not face-2-face). Things DO happen, even to the best of us.
I like to think my prices are reasonable & that the quality of my workmanship is WELL worth it. I often wonder how some LA'rs could afford to offer such low prices. Depending on the intricacy of a pattern a 62 x 82 quilt top can take between 6 - 10 hrs (taking into consideration most quilts need some touch up w/an iron, perhaps extra care because of wavy borders or fullness within the quilt, square'n up backing & battings, etc). So if you figure the 'average' e2e design takes 7 hrs that means 62 x 82 =5084 @ 0.015 = $76.25/7 = $10.89 per hour. I consider that a very REASONABLE amount to pay someone for their craft, especially if they offer more than your basic e2e styles and the quality of their work is good.
But, I ramble & a need to get back to work lol