Why Doesn't Reaper's Controls Move

Why Doesn't Reaper's Controls (TCP) Move when playing back with envelopes hidden? Is this a bug or a preferred way? Why do I have to view the envelope in order to see what it's doing?

Switch automation to "read" mode and they will move. It can be done globally in transport panel.

But although you switch automation to "read" you need to have the envelope visible to see movement. why? I never understand it. In "read" mode should be movement whatever the envelope is visible or not. I think so...

a) Watching faders move around all the time can be fun, but distracting. In a heavily automated mix a bunch of faders moving around can become very visually cluttered. b) I know that the audio is automated, I don't need a visual confirmation. c) When I automate volume, I consider the volume automation to become "part" of the track, basically like a compressor with a manual envelope. I look at the faders as the "overall" level of the track to be used for adjusting the "macro" level of volume, while envelopes are for the "micro" level of volume.