Quilting is so many small pieces and even binding ends up small, so I just don't worry about it not being straight. Even if I had to cut a wide border, I wouldn't worry, because the fabric can't warp funny after quilting. I quilt with patterns that have some quilting every 2 to 3 inches (usually closer) so that I don't put stress on the seams and pop them when I handle the quilt.
Now, if I were making something to wear, I would not have bought the fabric with it that far out. As soon as you wash it, you would have a mess.
Edited to add: I don't pre-wash and I don't tear my fabric, just so you know.