I would definitely let the long arm quilter know that this isn't quality work. I know you don't like confrontation - not many of us do - but she needs to know before she does this to another quilt top. Unless she did this for free, I would ask for a refund of all or part of the fee, too.
From the pictures shown, I agree that it will not be so visible once it's washed, but that's not the point. You paid for a certain level of expertise, and you didn't receive it.
Janet