transport explosions

The rules for explosions on the raider datasheet (and, presumably, all other transport datasheets) say that you roll for explosion before disembarking any units. Does this mean that the D3 mortal wounds would not apply to the unit inside, as the unit isn't on the board when the explosion is resolved?

For the record, I think that, RAI, the explosion applies to the unit inside. However, the wording, along with its interaction with the rules for transports, make it seem that, RAW, this isn't the case.

The transport rules say that the unit isn't on the table so they aren't within 6" in order to suffer from the explosion. Bizarrely!

Quote :

Embark: If all models in a unit end their move within 3" of a friendly transport, they can embark within it. Remove the unit from the battlefield and place it to one side – it is now embarked inside the transport.

Embarked units cannot normally do anything or be affected in any way whilst they are embarked. Unless specifically stated, abilities that affect other units within a certain range have no effect whilst
the unit that has the ability is embarked.