Whether this character is or not, I do not know, but the "companion PH" has actually become a fairly common thing among the better heeled in Africa. A client goes to South Africa and has a great experience with a particular PH. While around the campfire, they get to talking about other regions or game - lets say an elephant. The PH offers to set up the hunt, and he accompanies the client the next year on that hunt. He is the DeFacto hunting consultant. I know of at least three former traditional PH's who now operate from the US and Spain using this approach. I believe Ivan Carter was one of those who pioneered the this model.
A local PH will be along, but depending upon the relationship with the accompanying PH, it typically will be the "companion" that conducts the actual stalk with the client. Often the accompanying PH may indeed also be licensed in the country where the hunt takes place, but it is not his concession. We have a couple of sponsors here who basically offer that service. As long as no one is actually breaking the law, I see absolutely no issue with it, though the client will be paying a premium to have the company of someone he knows and trusts.