* A protected endangered species
* Hard to track
* Better to not encounter than to fight
It's sort of like grizzlies in Northern America National Parks. Your ideal situation is you aren't encountering a half-ton apex predator so if you dissuade the encounter and you also avoid it, it's much better than attempting to perform Pavlovian training.
I live in the US and hear far more concern about mountain lions than deer, even though people here are hundreds of times more likely to be killed by a deer. And do you know what helps control deer overpopulation? A healthy predator population.
It only takes a few generations for animals to become afraid of or lose their fear of humans. You see this in all sorts of species when hunting pressure is applied/removed.
So rather than avenge your buddy and improve the tiger gene pool, you’d get killed too.