Fixing or replacing the bolts would be great. I'd prefer new high quality bolts.
However, notice that on at least one of the front calipers it looks like the anodized finished on those is also wearing off. On one of the rears, you can see the bolts are fine and the finish looks pretty good - but it's starting to smear around some of the edges.
I dunno. The car is 6 months old. The more I think about this- the more I question the quality of the finish.