Kemper bag - backwards zippers?

Hope this is the right forum for a question like this...

I purchased the Kemper bag for my toaster. I was looking at it tonight, and the four inner lining walls all have zippers. Except...

All four zippers are backwards, i.e. the tongue that you'd pull is hidden inside.

Is this a defective bag or is this by design? if the latter, could someone let me know what purpose it serves to hide the zipper tongues? Perhaps I just need more coffee but I'm not getting it.

Picture of one of the rogue zippers attached.

I'm not unfamiliar with alternate universes. I just keep forgetting which one I left my drink in.

Thanks, man. I had considered that as well, thinking the zipper tongues could easily scratch stuff up.

I guess the real question was why there were zippers at all . Normally you use one when you want to open / close something, but in this case if it's just foam there doesn't seem to be a reason to open it in the first place.

Maybe you're supposed to rotate the foam every 10,000 miles like you do your tires?