Hi Far side
We have just started selling those type of connectors and you are right, they are not rated to the appropriate IP rating for being submerged, only sprayed or momentarily dunked in water.
Anyway, this is the sort of stuff that gives the do gooders ammo on why 4wds should be banned etc.
Perhaps Toyota could use it as a commercial, but at the end when he gets out and does the leap in the air, the song can say "Oh what a ######, in a Toyota"