It is more nuanced than that. Professional criminals won’t have trouble locating Musk, but nut job activists may be not that smart and providing them location actually increases risk for Musk.
This information is absolutely trivial to find and monitor.
How many people knew about @elonjet? You have to seek that out, too.
"How can I track someone's plane?
"What is Elon's plane registration number?"
"Website that tracks plane flights by registration numbers"