The story is legit and far larger than the actual incident, as horrible as it is.
It combines -all in one package- tragic and preventable deaths, roadway trucking & safety, Illegal aliens, sanctuary cities & their policies, Democrat soft-on-crime, news favorability & coverup and the Trump administrations efforts to provide for a safe & secure nation.
I don't disagree with any of what you wrote. But my opinion is that articles about it rightly belong in the news media (which has largely ignored it!) and social media (which is trumpeting it from the right and ignoring it from the left). IMO it has not yet risen to the uniqueness that would qualify it for inclusion in an encyclopedia. It might, give it time.