Asking a question is one thing, putting forwards pessimistic and conspiratorial “assumptions” is another…
I’m sorry, but which one of those is the question, and the last one really kind of stands out 
I don’t really think Steinberg owes anyone a response beyond what has already been provided. You can run Cubase 11 alongside Cubase 12 while you finish those projects and get the stems exported. Outside of having projects held hostage by those legacy plug-ins, there really isn’t any reason to mourn their disappearance.
This is a possibility in ALL products. Cubase is not exempt from this, so insinuating that Steinberg is an outlier is an exaggeration.
MAGIX, for example, is taking the legacy Object Synths and plug-ins like Orange Vocoder ME out of Samplitude Pro X [Suite]. DO some people like them? Sure. But it’s legacy stuff and they’re removing it because it’s 100% out of development and there is potential for bugs to hide within that code.
The question has been answered.
They can find whatever workarounds they want, but when problems arise in those components Steinberg is not going to be obligated to waste time and resources supporting them. Stopping you from using them is not really the main priority. Eliminating the need to support them is.
If they continue to distribute those components in the product, then they continue to obligate themselves to support them - bug fixes, problem solving, etc.
It’s like people are intentionally refusing to understand how this all works.
Lastly, why are you replying to me? I did not reply to you nor did I reference your reply. I simply referenced a reply by someone who quoted you, and my reply had nothing to do with what you wrote on this forum… It had to do with the content of the post I replied to - none of which really requires any replies to reference your statement de facto… We should all know how forum discourse works, these days.
Have a nice day.