There is no doubt that there seems to be some hidden instability in the code when some very specific parameters are met. I expect that is what makes it so difficult for Asobo to find those bugs. Need just the right combination of hardware, settings, background processes, et al.
I recently posted a list of basic system starting points. This goes hand in hand with this discussion.
If you have your system set up for maximum stability first then the same process develops. Once you have the sim running smoothly then you can start boosting the system. Best of both worlds when you have the software and the system tuned to play nice.