When I heard this point,
I kinda figured it's a
Scientology
kind of metaphor --
the tripods are buried here
in the movie, but
in life aliens
are "buried" within us all . . .
(in L. Ron's thinking).
I've no idea
if the whole film can be "read"
via Hubbard-think
(don't think I'll see it)
but bet it's consistent with
Scientology.
I wouldn't put ANYTHING past that group.