I don’t think it was a hoax, but campaign 101 is to be absolutely confident in your candidacy until the nanosecond you drop out. If you telegraph weakness to the voting public, and then end up staying in the race, that will be a millstone around your neck. Even if he was wavering in the weeks leading up to his dropout, there would be zero upside to communicating that publicly.
If you follow avherald.com for any length of time, you’ll learn that 1) the vast majority of aviation incidents are completely benign, and 2) the vast majority of injuries aboard airliners are caused by passengers not wearing their seatbelts. The seatbelts aren’t there for the once-a-decade crash; they’re there for the once-a-month strong turbulence event, which the airplane itself will barely even notice.