Imagine your home address was recently made public and multiple threats to your life have been made. Sure they might be trolls, but shit, what was that noise outside? Should I get up and look? Should I wake up my partner? Shit, chances are it was just the wind like it was the last 100 times, but that doesn't make sleep come any easier.
When you talk about the threats and your reactions publicly, there is a large movement attempting to downplay these threats. Saying they didn't happen, you made them up, or they did happen but they're just trolls and not serious, just like everything else in chanland, you're just publicising them for attention.
Then imagine waking up to news of a murder involving the same source of those threats. Do you expect the targets of those threats to maintain a cool head and investigate just exactly how similar this situation is to the threats they have been receiving before feeling any emotion? That expectation seems ridiculous to me.
I don't think Wu and whoever else are trying to "make it about them" anymore than it actually is. It's more a response to the constant downplaying of the constant threats and harassment those people have received.