For as fancy a name as it is, “soulshaping” mostly has purely mundane utility. The monks are scholars of the practice, but it hasn’t spread outside of Helm because it’s such a niche field of study with such highly specific applications – and the process of large-scale changes like limb management can take months or years. When you can get a living-wood prosthetic or a finely-crafted mechanical one almost anywhere in the world, regaining the feeling is a bit lower on the priorities list.