A constant moan I have seen for quite a while is for Cubase to be more stable. Now I believe that Steinberg have addressed this with two things in the 9 update.
First, 32bit plug-ins are very old technology that really have no place in your modern DAW of today. Yes they will work with a bridge but this is a compromise and for a few years now has been a major cause of crashing. So much more stable just to get rid of this old stuff out of your system.
At last Steinberg have made this decision for you. I for one am very pleased that they not wasting more time and man-power on the use of out of date tech.
Second, Plug-in sentinel. If a plug-in is blacklisted it is because it is compromising the stability of your system. You can still use the plug-in but at your own risk. For info the blacklisted plug-in would have been a problem in your pre upgraded Cubase, the difference is now you know.
I´m not surprised that the people that were moaning about Cubase bugs and crashes are now the same people complaining that Steinberg have taken away their 32bit plug-ins and a lot of their plug-ins have been Blacklisted by sentinel.
Just my opinion of course.