With wheels, I think the pits begin in the cones, then move to the races. However, with a wheel spinning, the wear is symmetrical around the race and asymmetric at the axle.

With a pedal, the maximum force is always at the same point in the pedal stroke. I can't tell for sure, but that looks like all the pits are on the bottom of the inside of your pedal, perhaps due to twisting and force on the outside of the pedals.

I presume if you tighten the spindle into the crank arms, you'll find your pit somewhere close to the bottom when the pedal is at the 90° downstroke.

There are 2 issues with "repairing" pits. One is that it changes the width of the cones (or races). With shallow pits, it may not be significant. With deep pits, it may be significant. There are also some notes about the depth of surface hardening (and I suppose also wear hardening).

I suppose I feel that one should get rid of the pits to keep them from growing.

If you have shop access, you might talk to the machinists, and see what they say about both the spindle and race pits.

I've never removed races. Are they non-destructively removed? Even on the Campy Record parts with small races?