[The Bard Rocks]

The divots may cause more aesthetic than playing problems. I have a very old banjo with a dyed pear fingerboard and it has amazing divots, yet plays fine.

Rosewood is of medium hardness as tonewoods go. Ebony is far harder and is therefore less likely to show this kind of wear. There are a few woods harder than Ebony - I have one fingerboard of Ipe (Lapacho is another name). It will never show divots, not in my lifetime.