real-brisker,
From you post, it seems that the wraps were made from apple juice. That being the case, I don’t see why they should not write that the bracha is mezonot. They are selling you wraps and not the whole seuda.
I think that they assume that you know your shita for keviat seuda and they are not going to pasken for you. Is keviat seuda a subjective amount (until one is full) or an objective amount (weight of 3,4,7, or 22 “eggs”)? How much does one “egg” weigh? Do you include the food eaten with the mezonot or not? I don’t think that they can include that whole discussion on the side of a box of wraps.