True, but it is a matter of weighing risks. I can't find it now, but I remember a few years ago there was a news story about how an update to Ubuntu had caused hospitals to start rendering MRI scan results differently due to differences in the OpenGL libraries. For those sorts of use cases, stable is the only option.
I think this is a perfect use case for CentOS/RHEL as opposed to Ubuntu when the machine has only one job and nothing shall stand in its way, ie when you expect everything to be bug-for-bug compatible. But I fail to understand why a vendor of an MRI machine charging tens of thousands for installation/support cannot provide a supported RHEL OS which costs $180-350/yr in the cheapest config [1].
