Relax - man, you're going to give yourself a stroke.
It just so happens that I get out to shoot 200 yards maybe once 2-3 months, and when I do, I'd rather shoot my .30 caliber rifles which I know past 200 yards stand a much better chance at putting something down. In my province, you can't even large game with a .223.
The niche to the T97 anyways is that it literally is a variant of a rifle designed to be almost like a light machine gun. I've shot a LMG before - and let me tell you, accuracy is through volume of fire - not a function of the gun itself. While you or I might not legally ever get the privilege to use our guns as anything other than 5 round range queens or varmint gun, it's still interesting to know and understand the unique characteristics of it. Personally I think it's a nice to know that by simply by having a gas selector with an adverse setting, other factors aside, you could reliably unload a very high volume of fire in a very short period of time. Furthermore, one thing I haven't tried - and I suspect not many others have tried is how is the T97 accuracy like with the gas setting set to 0? I accidentally fired off a round my last trip with it set to zero, and it's a very different feeling vs shooting it semi-auto.
To that point, IMO, the ballistic characteristics of the round are of paramount importance, even if there are few conceivable situations where it would actually be useful.
As an anecdotal example, the fragmenting threshold of .223 really means the difference of bleeding out over a period of several minutes or being instantly rendered incapacitated. Most hunters and combat veterans know there is a very big difference between the two - the difference is your quarry running 2 miles or an enemy combatant launching an RPG in your direction versus your dinner/the bad guy dropping dead on the ground instantly.
I will be punching lots of holes in paper with my rifle - but that that is probably all I will ever do with mine I don't take as an excuse to not give consideration to what that rifle is capable of OTHER than putting holes in paper.