Jim Kelley wrote:
... in particular, with regard to interference
as a *cause* for the redirection of energy.

Here we are arguing semantics, not principles, again.
The total destructive interference that occurs during
wave cancellation leaves the associated energy with
no option except to be redistributed to an area of
constructive interference. Hecht says as much in
"Optics".
--
73, Cecil, w5dxp.com