All of this confirms my assertion that Rimowa is all brand name and marketing fluff (as well as being heavy and a waste of baggage allowance). The guarantee specifically excludes cracks and dents.
Samsonite, on the the other hand, have some models which they guarantee as unbreakable.
I've been using those unbreakable Samsonites for more than 5yrs already. A little scratches here and there, but no damages yet.