Cubase 13 Pro has this new feature of changing channel configuration (mono ↔ stereo) with a single click:
Now, I have clicked the “do not ask again” checkbox in the dialog. But now, when mixing, I want to go back and force the ask dialog to avoid accidental changes with a single click.
It depends how one understands VST, I guess. For some it is only a plugin interface. Others know that VST is an entire system within Cubase. The entire MixConsole is e.g. working through the VST engine. Since channel configurations run through the VST engine, too, it makes sense to have this option in VST.