I've only been with Fractal for a little over a year, but in that time there's been two or three major firmware releases, and none of them have had this volume of reported issues, and given that almost all of them involve audio dropouts/unit lockups (which are catastrophic in live performance), it's a good bet that there's something crucial that needs to be fixed, and Fractal probably shouldn't have pushed 11 out as quickly as they did (especially when there were quite a few unresolved bug reports with beta 2).
The plugin nuke that they dropped today would explain why they haven't been very present on this thread. Only so many engineers to go around. I just hope that now the plugin is released they'll prioritize fixing the FM9, cause I sure don't feel confident in running FM11 on my Mark II Turbo.