Possibly but "a report from the Ninth Circuit Medical Examiner’s Office determined Friday that the ...man who worked for the airline died of multiple blunt impact injuries".
https://www.msn.com/en-us/news/us/orlando-international-airport-staff-member-dies-officials-say/ar-AA22GL8O
Multiple blunt impact injuries (versus falling) could be from a rollover.
Drivers roll them more frequently than outsiders would expect. A physically fit driver might jump clear but a crushed leg and pelvis was common.
That does make sense. As heavy as those tugs are, it would seem hard to flip one. But we say the same about forklifts (and the importance of forklift seatbelts)...