Having read a lot of the "Equipped" site I can see why Doug Ritter may not even have thought of using the back of his knife in this way. It is very much a survival site, and in that respect his comments about always having an alternative striker are perfectly valid. Mind you, I also think that your opinion that the knife should be useable as a striker is equally valid, and it basically comes down to how you're expecting to use it and whether the situation is everyday use or short-term survival.
It's a lovely looking item, but I cannot see myself ever needing one. For bushcraft it seems a bit like overkill.
I do find it very encouraging that Mr Ritter posted a response to you, though, and it's something I like about this site too. The Internet has managed to bring a lot of diverse people a little closer together through shared interests, so now we can disagree and argue cheerfully with folks half a world away.
Incidentally, any thoughts that I'm merely jealous because I use a considerably cheaper and more basic knife are of course simple nonsense... ahem.