I guess the justification lies in how often they pose a problem for you. I've never had anything come out so off that I considered discarding it. I think it's all in keeping that 1/4" seam allowance. I just keep squaring things up as I go. But, if you've had issues in the past with those little guys, maybe this would be a great solution. I don't know how much they are, but I think for me personally, I would pass.