Is the Weapons Intelligence Course still a valued certification when it comes to career advancement or for post military career marketing?

If nothing else, it shows military education progression.

Of course. Just because we're shifting gears towards peer to peer doesn't change that we're still at war with terrorists globally, and we'll need to retain this skillset. Getting rid of it would probably be par for the course in terms of shortsightedness though.

What exactly is “peer to peer” in this reference?