That didn’t end. Most ambassador appointments are like that, and even though agency/department appointments require congressional approval, the wheels are so well greased, people with zero relevant experience get through. The horse breeder who was head of FEMA under bush comes to mind.
It’s also kinda how governments work; merit is nice to have, but loyalty is vital. It doesn’t matter how competent someone is if they’re going to use their power to sabotage your administration to benefit their friends in the opposition.