Maybe. Again, I think that the number of snowboarders who want more mountaineering-oriented gear is pretty small - and they have plenty of gear to choose from that's made by mountaineering-centric manufacturers.
It's kind of like hard boots: sure, there do seem to be some splitboarders and hardcore carving dudes who want hard shell boots. There just aren't enough of them at this point for any of the mainstream snowboard boot manufacturers to think that producing hard shell boots is a smart business move.
I agree with both of you 🙂
Yes, splitting does not equate mountaineering, and my point was I like full side zips for "just" touring and / or even regular resort riding.
I think it's nice of Burton to have a full side zip bib option in the product line, don't care if it's regular or additional and what particular model it is, even what technology, as long as it's good WPB - like GTX, eVent, Dermizax, whatever