I hade my 21 in the dealer 2 weeks ago for a new exhaust system (warranty) and on the repair order it said side stand bolts checked and retorqued. I knew about the problem just didn't get around to doing it. Spoke to the tech and he they have had two bikes with case damage. One HD was replacing the engine and the other he was in the process of replacing the cases. He said he was very impressed with the motor, having one completely apart for the first time.
Thanks @CrewDawg - I suppose the only change there is the addition of thread lock to the three bolts, and snugging them down as usual. Checked mine a few months ago and one was a bit loose - still there, but definitely not snug.