Yes, and that could also be why it seems to be stretched out of shape. But even taking that into account, it seems to be a bit rough. Not really sloppy, but not an expert job either.
That's very heavy material. Light wouldn't show through it and it would have a lot of insulating properties.
This is my impression also. Definitely not an experienced or advanced project. This looks like an item born of a need, without the luxury of having access to correct lengths of fabric for the job. Someone with a little experience but confidence to make it work with what was on hand did this, imo.
I'd like a clear picture of the stitching. I'm wondering if this was made by hand or with a machine. A machine sewn item should be in better shape, even after 27 years. Again, jmo.