Concrete coping questions, recent installation

[jjcormane]

We chose precast concrete coping and noticed a lot of "imperfections" in the coping and scratches. Having builder replace some pieces. I was wondering if hairline cracks in the grout between the coping is normal? Also I've noticed separation between the bottom of the coping and the material they used to attach it with. See pics. These are things the builder should repair/replace right?

 

[AQUA~HOLICS]

Hairline cracks in the grout is normal and expected.
In the last picture, the void is not normal and most likely from an air pocket during installation.