Mine came in the same packaging, but was held tightly to the cardboard by the plastic over-wrap.
There is a picture of the inside of the Kemper DI out there on the web, it's as solid-of-a-state as you can get inside there. Seriously, you could run over it with a car, and if the chassis survived, the internal components did too. Don't spend another second worrying about it, tomorrow it'll work just fine. Enjoy!