That's interesting about the packaging size change, I hadn't heard that before. I assume these blisters hang on adjustable hooks in the store, so they can still be fitted in.
This reminds me of the argument about larger paperback books.
I detest the oversized books that usually come out as first printings these days. I think they call them trade paperbacks. The idea, of course, is to have a bigger book cover on the shop shelves to catch the eye.
Where the logic falls down (and I never have had a satisfactory answer to this) is that if everyone does it (which they do), then all you get is fewer, bigger books on the shelves, as the shelves don't magically grow bigger to accommodate the bigger books.
Then once you've bought the book, the poor reader has to lug it about in a bag because it's too big to slip conveniently into a pocket, and once read it fills the home bookshelves quicker.
I hope Playmobil don't follow up with bigger Specials boxes.