You make good points, but I think in general people just like to talk about standout products more than anything, and in QDC's case, their standout products are their 8-driver models and the VX. I wouldn't particularly consider this any form of elitism should the latter few gain more traction in discussion, that's just how things are.
Hopefully you've noticed that I've been happy to discuss anything QDC in this thread, but the reality of it is the rest of the QDC lineup, while good sounding, isn't all that much to talk about given they don't particulaly excel, especially given their relatively expensive price points. The 8-driver models and the VX can be considered some of THE BEST in ears in the world, and that's a talking point in itself.
With that being said, best wishes to you on your audio journey. Happy listening.