That seems like a huge exaggeration. Maybe your magic staff doesn't fit in there but I'm fairly certain all (or nearly all) of the wands fit.
During my visit yesterday (specifically Mummy), I stuffed my medium sized backpack in there, along with my large water bottle and phone, and still had room for more. When I visit with my GF, we take two lockers if needed and remove items from the backpack if necessary.
I can't wait til the change comes to FB.