I think his error in this case was to trust his paid guides. Could be a lesson to anyone that hunts out of town. Make sure your guide is legit. & if we as hunters start bashing this guy for a legal hunt on his part. Then we are just as bad as the anti's. IMHO. As for his past hunt ethics they shouldn't even be mentioned in this case, if he was legally hunting this lion.
Now on the other hand, the guides maybe a different story, punish them, for their lack of licenses, tags, permits, taking the client to the wrong area.
Put your self in this hunt (pick an animal) out of town and with a guide. Do you think you should be in trouble for the guide not having his license? I don't. Ed