I've been following the Reddit Transformers forum lately looking at how the new Legacy packaging is fairing. There have been a few reports of missing accessories - Legacy Bulkhead's spherical mace seems like another easily stolen item. But the main and common gripe has been the flimsiness/thinness of the cardboard. That and the lack of plastic window and especially the plastic insert that reinforces the box (removed with Kingdom) and perhaps the angular box shape/crease has meant boxes are getting crushed and torn when sent in satchel mailers (many complaints about Amazon US as it often uses satchels instead of boxes). Be aware if you care about box condition.
So here's an interesting thing - Legacy Nightprowler/Sandstorm/Buzzsaw have the
plastic window back. I wonder if Hasbro saw too many complaints about plastic-free windows.