It's genius!! They are making fun out of everyone else. IE: New marshmellow shapes, new Cheerios flavours, etc., etc.
They are saying, look we could make some stupid cosmetic change too, but it's still Shreddies and you still love them for what they are.
Don't expect to find Diamond Shreddies on store shelves.
Edit: Then again, depends on how far they take the joke. I could see a limited edition Diamond Shreddies box on store shelves. Heck, I'd buy it to show my grandkids (in some far off distant future).







