Isn't it hypocritical to say you care about all life yet gloat when a human dies?
Many of the vegans I've met care a great deal about animals and creatures with no control over what happens in their lives, but have a certain 'fuck you, assholes' attitude to humans (adult humans with agency get the brunt of this). It's definitely illogical, but that's human nature for you!
Doesn't make them great people. Someone dying should trump petty disagreements- being a hunter is not like being in ISIS, most people's response would be empathy.
I can't say I've noticed that tbh. Most people I've met hear someone has died, ask a few discreet questions to discern just how sad they should feel, then make the appropriate remarks. I always feel sad for any family left behind though.