It looks like they can be successfully refinished, the checkering and medallions still look nice. The way they look would not bother me personally. In the end, the only thing that matters is what YOU think of them, not someone else.
I've been on a sort-of quest to acquire grips to match some of my "adopted" revolvers, and here is the general guide I use for my own use:
1) If a gun came with original grips, I would only refinish or repair if they are damaged in some way, like a major chip, crack, or someone putting a layer of shiny polyurethane over the original finish. (Rarely the case with my "rescues", lol.)
2) If a gun came with rubber grips, or mismatched grips, then I try to find grips that match the vintage or condition, meaning good used grips from the same period on a good used gun are fine.
3) If I have a gun in VG-Exc condition and matching grips in similar condition are hard to find, then I would definitely refinish some period-correct stocks to match the condition of the gun.