If the material is notably different you cant gauge glossiness or non glossiness as you are comparing apples to oranges. Even if the material was sourced by whatever company did these(poch/pbp) from the same source the company who supplies them could have had different methods and with something like a thin sheet of vinyl even a slight change in one ingredient can cause a different feel or look.
I worked for a plastics company for a short bit and can tell you that not even ingredient change but other things has an effect. if the roller was to hot the plastic looked almost melty/liquid like and had a bright sheen to it as it was wound onto the rollers. If it was to cold the plastic looked hazy and was not as clear or translucent and that is just at the packaging area not even the hopper where the individual beads were put in. If the beads were made differently it looked different. This is a batch to batch tolerance that was given so long as the various test showed it was in compliance. So one batch looked slightly different to another, not huge but enough to be within tolerance yet slightly different appearance.
As far as the cut, there are things that can make the cut vary a bit. My understanding of these capes where they are die cut from stacked sheets. I explained in another thread how a dull die can cause the top layers to stretch out while cutting. Remember these would likely be cut with force versus heat as heat on this thin material would cause melting and ruin the product. So as a die goes through the layers if it is dull it can stretch the top layers making them larger than the bottom. I don't know how many layers would cut at one time, but if it was multiple layers the top could potentially stretch almost all the way to the bottom layer before releasing. Is that what happened here? It honestly doesn't look like it, but I don't know. It almost looks like the die was changed to a larger die. We don't know if that is what happened though as we don't have a kenner employee here to say.
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Bryan
I have caviar dreams and McDonald's pockets