I neither missed nor ignored the segment you cite (though I do appreciate your reading it).
The point is that commercial big game hunting remains a very problematic issue, in that it fuels a man vs. beast mythos that gives trophies a value which encourages more hunting in areas where populations remain truly endangered. And again, it creates a legitimate source for ivory which has the nasty effect of providing cover to ivory gathered illegally.
Not only does that cover serve sellers with ivory in the market, it also applies to ivory in the possession of buyers who can more easily deflect the (totally justified) social stigma that was slowly starting to attach itself to the stuff.
It comes down to this: there are some areas where profit seeking tendencies are toxic, and where responsible stewardship demands a more disinterested handling. The "glory" of big game hunting (and, specifically, its packaging for sale) is one of the prime reasons that many populations got endangered in the first place.
Even if the necessity to cull does return in certain areas, it's critically important to handle this without reviving the specter of the Great White Hunter. And it's just as important to ensure that any consumption remains entirely local. Letting commodities like ivory and hides slip out may bring short term gains, but only by serving markets that represent the antithesis of conservationism. The arguments you cite don't do nearly enough to acknowledge this aspect of the problem.
Separately, what you allow to offend you is your business. Personally, I don't mind lightly-salted language and a well deserved jab. Where I take offense is in seeing a demonstrably mindless response that veers wildly off-topic before landing in a thicket of unwarranted slurs getting upvoted to the degree that c2's did. And I hope I'm not alone.