it comes down to a philosophical question. "would you rather plan on sending one through the boiler room or occasionally sending an errant shot?"
There are a hand full of studies showing that a hole of about 6mm through the cardio pulmonary tissue of most animals is sufficient to drop them within reasonable run times. (link studies that counter this if they are out them). This being established it comes to a question, "do you plan on hitting the lungs way more often than not or missing occasionally?"
If you have a lot of confidence in your ability to shoot and your bullet choice, opt for A good straight shooting, non fragmenting design like the barnes ttsx that will bore a hole through any amount of tissue to the lungs and drop the critter. However if you expect that occasionally you might happen by total coincidence and circumstances far beyond your control place a shot off the perfect line through the lungs, you may consider choosing a fragmenting design like the hammer you shot.
The massive damage that bullet did is testament to the ability of the bullet to send mass in tangential lines to the direction of the bullet path, that is a good thing. These chunks of bullet will absolutely increase your chances of finding "cardio pulmonary tissue" in the event of a poorly placed shot. (which we are all subject too).
My personal philosophical perspective, I believe that it is far more importaint to shoot a bullet that will compensate for my own occasional shortcomings and drop animals when I send bullets at less than optimal paths. I would much prefer to shoot a fragmenting design and feed my dog 50% of an occasional shoulder than shoot A penetrating design that doesnt compesnate and lose 100% of the animal that I couldnt recover.