This is countered by the same arguement that was made in the
"Humans should be 9-C" thread
Real life physics is far more complicated than Vs Battles Wiki's very basic form of physics. In real life, there is litteraly billions of possible factors that can impact if you survive something or not, such as where you were hit, how, energy distribution, if any vital organs were hit, the angle, ect. This has allowed for 10-B people to survive getting hit by trains or falling from 30,000 feet from a parachute, and has made people die from slipping in the shower or getting punched once by another 10-B person
The article gives litteraly no detail, we don't know if just his paw was hit or if he was hit head-on, if the train was slowing down or going normal speed, the angle of attack, if the bear had any injuries afterwards, ect. Because of that, this feat is just to vague to actually use as we don't know any of these factors, and it's very likely that the angle of attack or where the bear was actually hit allowed the bear to survive that, thus making it so that he doesn't actually scale to that
Also unless you're a damn blue whale or something, no animal could realistically survive that. Bears get hurt and killed by each other all the time, and it's not physically possible for a bear to attack with 9,000,000 Joules of energy. Hell,
humans have killed them with knives before. There is no bear on earth that would realisically scale to that