Haha! You’re welcome!
I hadn’t even heard of Caron Cakes, but looked them up on Google. Any self striping yarn has the same issue. Each color segment of the yarn is a certain length. They can all be the same length or different lengths per color or random lengths as the yarn designer/company desires.
If you were to make a baby hat or sleeve the stripes would be wider because there are less stitches in each round so you make more rounds. If you make an adult hat they are narrower. If you make a sweater they will be very narrow or possibly not even go around.
Pictures… look up the yarn on Ravelry. Click on projects and then select pullovers. You can see the difference on the sleeves vs body on some of them. Some seem to have been altered to make them even, but some it’s obvious.