I'll take a look, Walove. Snowolf, it is a technical climb. Crevasses and ice falls are above Camp Muir. Above Camp Muir, we were roped up, crampons and ice axe (mandatory). If you were to skin above Camp Muir (which will be ice and extremely hard crusts) unroped or roped up with team members, you would be putting yourself and, more importantly, others at significant risk if you slipped. I don't see how one would be able to.
How about other Cascade volcanoes? Baker, Adams, Jefferson? Anyone splitboard those to/from the summit?