I was fixing all these stitches, then I bought a long arm (very used) and started doing my own quilting. I can't even find where the stitches went the wrong way after quilting or while I am doing the quilting. The exception is, if the fabric is too dark and you can see it on the front. Then I fix it. Or, if the seam is just too darn bulky.
I have been known to turn the seam in the middle so that it points in the right direction. Having said that, I don't ever do any stitch in the ditch quilting, or right next to a seam line. Those turns could show up if you do your quilting like that. My quilting is all free hand or pantograph designs. Mostly pantos. They hide a multitude of piecing sins.