I don't care at all about this particular incident, if the guy did something intentionally illegal fudge him, if he didn't leave him alone. However, if you take the emotion out of it and think about it with strict logic using facts everyone that loves wild animals should love hunting. They should, in particular, want people to hunt whatever their favorite wild animal is.
Hunters are the absolute best conservationists. In fact, hunters are so great at conserving wild populations of animals they make all other conservation efforts laughable. Making something "endangered" doesn't do shoot to ensure a species' survival, especially out in the asshole of nowhere like mosquitoplauge, Africa. Hunters are the reason wild populations of Rocky mountain elk, mule deer, blacktail deer, sitka deer, whitetail deer, Merriam's turkey, Osceola turkey, eastern turkey, goulds turkey, antelope, all the whatever sheep species, brown bears and black bears exist in the United States. Ducks unlimited is the reason there are real migratory ducks and wetlands around, not just shootty golf course pond ducks. This is just in the United States.
Wild animals ain't shoot in the face of human progress to most people. I am totally sure that if hunting wild African game wasn't a thing most of that shoot wouldn't exist to the extent it does now. The people over there have no interest in keeping populations of wild lions around. Lions eat them. They fudgeing hate being eaten, so by extension they hate lions.
The only people that voluntarily go to that godforsaken hellhole of a continent are missionaries, gold/diamond miners and hunters. I imagine the vast majority of infrastructure in that place comes from foreigners seeking gold and diamonds, spreading Jesus and killin' animals. Diamond miners and and missionaries don't care about animals. You stop legal trophy hunting? Native poachers kill all the animals and 1/3 of the money and infrastructure there dies. Trophy hunting is demonstrably better for the area than all the internet activism we first world countries can possibly muster.
You wanna save the tiger or black rhino? Let it be known that if rich assholes raise the money to grow a hunt-able wild population you'll let 'em kill some. Does that say something dark about human nature? Maybe. But we are hunter/gatherers. Its in our blood.
Full disclosure: I hunt and fish so much that it makes me uncomfortable to buy meat at the grocery store. No interest in ever going to Africa, no interest in trophy hunting lions. I would, however, love to kill a grizzly bear with my bow so I guess you can call me an asshole for that.