I'm so sorry that the result you got back was so undesirable. Echoing what the others said, rip out.
But whether to say something to the quilter- I think I would! Not to hurt her feelings, but to let her know that what may be acceptable for her own quilts aren't acceptable for a quilt that goes out of her house, and to let her know she needs to practice some more. She may think that she has more skills than she does, or maybe she doesn't care about quality and needs to know that other people do! I would say something to her about the fact that you are ripping it all out because it is unacceptable.
To me, it sounds like she didn't put it on the frame right- as others said- it was crooked, or she didn't have side tension right.
Best of wishes and let us know how it all turns out!