There are lots of places where having logarithmic sliders would be so much more useful than the linear ones. (I have the same complaint about Photoshop, but it's not like Adobe's going to listen.) Take exposure, most of the fiddling will be trying to get the mouse in that one pixel somewhere between, say, 0.4 and 0.5. (Even on a 4K monitor, there's only one step in between.) Each step is an enormous difference in brightness and ultimately the power user has to resort to typing things in to see how they look. On the other hand, it goes out to +20, which is fine for occasional needs, but gives equal weight to +19.45, +19.50, and +19.55. Is that reeeeeeeeeeeeeally necessary at that point? The whole point of logarithmic sliders is to give a finer scale where it's needed, and a coarser one where precision is unimportant. There are lots of adjustment sliders where this makes sense, since most small adjustments call for precision and most large adjustments are fine being coarse.
I searched and surprisingly, no one seems to have brought this up?
Side note: The behavior of the exposure slider with the arrow keys is a straight up bug; 0, -20, and +20 are the only options.