A) Lazy kids adding suggested snacks based on the suggested algorithm which would totally suggest other things made by the same company...

Or

B) Viral marketing attempt featuring poorly placed products which having seen the image about an hour ago I can only tell you it has some kind of popcorn in it...

You choose which you want to think.

Edit: A is even more simple. It is this snack pack, meaning the kid put one item on the list and the parents assumed the contents were individually selected.

Yes. This is the exact snack pack.

The kid just put this "Ultimate Care Package" on a wish list and grandma spent $20 to make him happy.