I'm under no illusions regarding where meat comes from, I'm a committed carnivore. While I've no objection to hunting for food, I'm disgusted by trophy hunters and those who kill for fun.
I worked 5 years in a gun shop, there are people who hunt for the sheer thrill of killing, and loved to talk about what they did. Baiting bears with garbage, habituating them, then shooting them from a tree blind. Getting double ought buckshot for rabbits, because "I just like to watch them blow up." Point being, I'm not monolithic in my judgments. If you aren't going to eat it, and you aren't defending your life, don't kill needlessly.
Of course, that's my opinion, which is of no significance to anyone but myself.
Regarding the parentage of the cubs, I had assumed that information came from the Cambridge study, but haven't researched it, and should. Behaviorally, I don't know if the subordinate partner male has breeding privilege. One article that clarified the cooperative relationship between Cecil and Jericho said that Jericho had 3 lioness, but no cubs.
There are about 35,000 lions left in the wild, a pitiful number, and they aren't even safe in the parks, just the same as animals here. Cecil was significant as his pride was under study, but I am concerned when others are shot for fun as well.
I know about the exotic game hunts here in the U.S. it's something I have to put out of my mind, revolting, disgusting, and contemptible. There's nothing I can do about a mindset that defines that as fun.
Last, if Cecil took 40 hours to become sufficiently incapacitated to be shot, that was an especially poor bowshot.