I admit to being torn. I support the right of landowners to use their land as they see fit, I support traditions, particularly hunting traditions involving fathers and sons, and I support legal hunting even if it's not for me.
On the other hand, when I saw the picture without reading the comments, my first thought was "oh no - who's responsible for this." To see so many bushbuck killed in a day - an animal which is my favourite among the spiral horns (and I have them all save the LDE) - causes me some pain.
To keep myself happy, I'm going to assume that as landowners, all of those who participated in this hunt are involved in the preservation of bushbuck habitat, and protect the bushbuck numbers on their lands so that this type of hunt is sustainable over the long term. If I'm wrong on any of those assumptions, please do not feel the need to disabuse me.