It's still a terrible metric to compare the safety of modes of transport and the Wiki article just below the table explains it well:
The first two statistics are computed for typical travels by their respective forms of transport, so they cannot be used directly to compare risks related to different forms of transport in a particular travel "from A to B". For example, these statistics suggest that a typical flight from Los Angeles to New York would carry a larger risk factor than a typical car travel from home to office. However, car travel from Los Angeles to New York would not be typical; that journey would be as long as several dozen typical car travels, and thus the associated risk would be larger as well. Because the journey would take a much longer time, the overall risk associated with making this journey by car would be higher than making the same journey by air, even if each individual hour of car travel is less risky than each hour of flight.
If people made similar trips with cars as they do with airplanes, cars would lose in the per journey metric big time.