We do not know how the design process for the Njord went. They're now releasing a chamber reducing element, was this an option before release and got cut due to cost saving? Are there other things that were options they didn't went with? Airflow ring? Squonk pin? No way for us to answer.
What we do know is that they planned an RDA at lower price point and that automatically reduces all sorts of options available to a $60-$100 RDA.
Now this isn't meant to be any defense of the Njord, I probably wouldn't enjoy that thing either as it is now, at least not without a few reviewers testing the chamber reduction thing and report "problem solved".
Here's an image of the contraption for those that missed it
As to the flat wire and flavor and all that, I've used flat wire (0.8x0.2mm and 1.5x0.2mm) for 4 months now and the flavor is different from the fused clapton I also use (2x28g+40g). Not always in a good way. The flat wire (while not the exact thing M.O. uses) fails to deliver good results with (to me) more complex juices and reduces sweetness. For something like a fresh summer lime vape that may be perfect, for a salted caramel espresso or a lemon tart that's a fail and you sometimes can't even recognize the juice any more.
My hypothesis (untested) is that the flat wire has less temperature differential in the coil, different parts of the coil are closer in temp than in a clapton. Most ppl know that different temperatures bring out different flavor nuances, so a broader temperature band in a coil could result in more differentiated flavor.
Like I said, that's totally off the top of my head and unconfirmed, to me there's something to it. I use the flat for more fruity flavors, really makes them shine and can even bring out some acitdity making them taste less like candy. For dessert flavors I'm back to my trusted fine fused claptons.
The main thing I'm missing in his airflow experiments is a hot coil vaporizing liquid, I see no reason to outright dismiss every effect that could have on airflow