It's definitely a trick stores do to make sure you see full shelves

Went in to an Aldi store in the last few months [or Lidl, I never remember which one it is], and compared to a previous visit where there used to be an entire fridge/freezer not attached to the walls was instead some regular shelves packed with chocolates and other snack foods. So maybe they were lacking in frozen goods and didn't want it to appear so.