The other thing that I see and I see it a lot is that the ground rod is inside the drip line of the house. That can be a dry area especially in dry weather. Grounds don’t work as well in dry soil and should be installed outside the eve of the house. Our county electrical inspector (which I know that we are not code inspectors) requires all grounds to be installed that way. Any other ideas on this.
Before I condemn the clamp I would need to see it a bit closer. Some are listed for burial. I agree there should be some better way to close that KO it is coming out of the enclosure through, or just use one of the 1/4" holes designed for the purpose. Mike is right about driving it all the way down. I used to carry a big hammer in my car for times when I found one sticking up like that. They didn’t have an excuse for not driving it in then. It also saved them a “reinspection charge” which could be a couple hundred bucks if they were 3 counties away.