Yeah, it’s not even really a requirement. Just a preferred method of editing. But, the general behavior shouldn’t be so dicey that you have to be a UI mode expert to use the software.
Regarding focus, what I hated most during tonight’s tests :
Even though the mixer title bar is blue, you definitely lost all project KCs and can mouse-scroll through mixer channels, that doesn’t mean you can now use e.g. “collapse” or “expand” KCs for the racks…snip
the focus stuff is just salt in the wound. For the life of me, I can’t figure out the “no problems here” folks. The only way you don’t have these issues is if you just control all Cubase functions using a mouse one window open at a time.