I think the same, so we are two people with the same problem. I do not understand why it is so rare in corona, and in vray it is so simple and understandable to understand.
It is really so difficult to adapt the corona way to a simpler form, maintaining what we already have.
Believe me, it is really difficult to obtain the desired effect easily, underwater fog, with various levels and colors. Without commenting that Vray has an aerial perspective that already leaves a post about it, things that corona does not do well either, and I don't understand why Corona does not take the whole matter of the fog, fog volume, air perpective, and simplifies it.
I do not understand why it is so bulky. I know a lot of people who don't use it for this reason.