You optimize for the common case, not the uncommon one. Shouldn’t we figure out why shootings in general are happening rather than fixating on a specific case because it involved an unpopular minority group?
Eventually a dog dies. Now I start wondering "Well dogs are only 1% of the dead animals, may as well not focus on that..." I may miss out on an important observation.
If your presumption is true, that trans are more robust against these kind of acts, now I'm wondering. Maybe unhinged poorly socialized young males are the canaries and trans are yet something new. What's wrong in the coal mine and what can I learn by focusing on the newest subjects.