I'm unclear what jet aviation risk we are equating to hazmat ground transport. It's not raining aluminum very often, and it's a news frenzy when it does happen.
Every time I read "private jets should X" I can only ever boil it down to envy or "because I have the right to know", which I personally don't agree with. I seldom see things like "transporting that organ to its transplant patient via light jet is so carbon intensive -- why not use passenger aircraft cargo instead?" or other more nuanced takes.
For some, I imagine the opacity is worth the frightful cost of private aviation. I don't know what it is like to have millions of fans trying to figure out where I am at every waking moment, and the very idea is horrifying. I don't think any valid purpose is served by knowing where <star du jour>'s jet takes off from or lands at, and I don't think anyone is honestly looking skyward to FL410 and worrying about an aircraft part landing on them.
From other conversations about this topic, I thought it was interesting that the congresscritter who advanced the legislation is from the Bentonville AR region -- and crafty investors have tracked Walton jets to figure out where the high-level Walmart business meetings are happening, then making inferences about upcoming stock-moving deals. I thought that was fascinating. Humans are crafty, and humans with means who want privacy will find it, despite any number of laws passed. It all feels like wasted whack-a-mole effort to me.