@Nizza Those are valid use cases and is definitely one way to make it work.
To me it is truly missing a min-speed (instead of just off off) and a set point that then ramps up to a user definable max (or just max speed).
It does have this sort of, but it is considered an alarm state, and comes with an annoying beep (open it, and detach the buzzer?).
I experimented with this for a while, having it on at low speed, and having a temp alarm set for 24c so it would ramp up when the lights kicked on. Problem was, if you then cycle through the settings for any reason you will reset alarms (support tells me this is by design so you are forced to clear and reset alarms when they occur), if you forget, you won't get the ramp up.
Or as mentioned there is completely off, and then on at a set point. If your situation stays under the set point for any significant amount of time, and this is your only fan, you might run into air-exchange problems, or it might bounce from off to on frequently.
It will work, and is working for me, just not as I had hoped.