How many cars were in that lot... and how many corresponded to the staff at that plant? Any unfortunate person in that lot would have been immolated.
The blasts might not have killed many in the apartments but they would have wreaked havoc... where are all those people?
Thankfully the vast parking lots of cars were new cars being shipped through the port. So while there was a tremendous loss of property for the manufacturers, the number of cars isn't indicative of the number of people in the area.
Sadly there were fire fighters and police close to the explosion, and of course many people injured further away from the effects of the blast.
It also appears that large stacks of shipping containers may have absorbed some of the energy of the blast - a bit of good luck in a terrible situation.