1) You don't get to decide what "needs" to happen - individual posters don't get to exert editorial control over what others post. Folks who aren't interested in that line of discussion are free to not engage. If too few are interested, that sub-topic will die on its own without your intervention.
2) While EN World is filled with people who are into the active, engaged gaming, most of our tables probably aren't filled with those same types. However active and engaged we, personally, may be, we generally play with folks who are less engaged, all the way down to the beer-and-pretzel sorts every day, so knowing how to work with them is important to us.
If a schema of gaming is not applicable to those people, it is pretty important to recognize that, and talking about why it doesn't work can be edifying. If it is applicable, but needs some awareness and techniques applied to make it work, that's a very valid direction of discussion.