I don't think you're being at all unreasonable. However, I've heard others saying that their precuts: jelly rolls, charm squares, etc...were not cut evenly. So, I think it is just a possibility always. It doesn't always happen, but sometimes it does. And since it was a gift, no way to check for accuracy ahead of time. If you do the jelly roll quilts that are sewn in strips, you could probably put your narrower strips together, trim them to a consistent width, and not worry about it. Shouldn't be too tedious if there aren't too many. Good luck!