I would never suggest that anybody was talking rubbish whilst recounting their experiences, unless I had flown with them during 100% of their flying career. You haven't, so please don't.
Fair enough. However, you were using your past experiences as a basis for what happens now - this is, as I hope I've shown, not the case.
I would be very surprised if pilots of the older Citations are not coming up against this situation on a regular basis.
Hasn't happened to me in the last 3-4 years that I've been doing it. Fact, not fiction. (1982 Citation II, RVSM equpped, M .63 limited in RVSM airspace)