Shatterproof including collision with the ground ? Amazing. Seeing is believing I suppose. IMEX auditors always demand a cover even though half of them can't see that high in a cold room anyway.
I personally don't know if they would survive hitting the ground as we never had that happened. They had a pretty long life and usually we changed them but never had on fall.
In MHO, we need to do everything we can to prevent problems and create safety, but life happens. If I saw that a bulb had broken, common sense should tell me what to do. I realize that those we work with may not know, but that is why it is so important to create a culture where safety is paramount and it is safe to ask questions and help is rewarded. Not an easy achievement but possible.