Solution:
Put it in the wishlist forum where the developers and owner look for these type of ideas, and consider the idea and the feedback of others.

FWIW, what I see as the actual problem is that (even with 'Send realtime messages' and 'Send most recent controller' enabled) RB is not doing sending the most recent Node setting on the Audio tracks, so the slider is not resetting to where it should be when play is started at a random point in a song. I see this as a valid complaint. The slider moving; not so problem .. the slider not resetting; yes, a problem.
If you rewind (so the initial Node is sent) it does reset.

I can pass this on to support, as can you.

Using the CC11 (like the others do) adds a complexity to it for some users. Say you get the nodes set to exactly the volumes you want throughout a song. Later you decide to turn the slider up for that track to get it louder in one spot .. now all your Nodes are changed because the scale used by the Nodes has changed, so you may find yourself going back through and changing all your Nodes.

They had to pick one way or the other. They chose the one that would be simplest for the user (at least for the initial feature launch). It would have been just as easy for them to make it happen on CC11 as CC7, so I wouldn't say they did it this way because it was easier. I think it was with forethought.
When the Nodes are hidden, seeing the slider move may be a plus for some users, so they can 'see' what is going on.

I do not work here, but the benefits are still awesome
Make your sound your own!