What makes you think I haven't?
The one shown by Rickson and the Tritach guys is based on the concept that you're performing the counter before the second arm is engaged. In other words, as soon as someone wraps their initial arm around your neck, you counter. That isn't necessarily a counter to the RNC, its more along the lines of someone wrapping their arm around your neck and pulling you backwards.
Stephan Kesting and the Submission 101 (mainly 10th planet) folks deal more with the RNC variation of the counter. Kesting even explains why you're probably not going to do the throw if both arms are engaged. The same general principles apply though.
I disagree. Being older or traditional doesn't always equate to "better". Modern Bjj is integrating MMA-based wrestling these days and slowly moving away from Judo and even the older Gracie JJ standing grappling concepts for standing grappling entries. Let's put it this way; Rickson Gracie, Dean Lister, Bernardo Faria, and Bas Rutten would maul classical Japanese JJ masters from hundreds of years ago. That being the case, if Dean Lister or Bas Rutten puts out an instructional on a technique, it's hard to make the argument for not going with the superior martial artists over the inferior ones.
I gotta say though that Rutten's instructional on how to escape the standing RNC is absolutely crazy..... Which is pretty much Bas Rutten in a nutshell.