Completely subjective answer, but I suspect it's borne out of a need or necessity. 3D modelling/animation prior to Blender was really dominated by a few key pla

Completely subjective answer, but I suspect it's borne out of a need or necessity. 3D modelling/animation prior to Blender was really dominated by a few key players who were seemingly not afraid to be user hostile, or charge huge sums of money for their software, etc. In the music production space, you have many DAWs being given away for free, or coming with your OS, or not costing exorbitant amounts of money. My guess is nobody has been motivated enough yet to do what people like Ton Roosendaal or Linus Torvalds have done and devote years of their life to producing a viable open source alternative to the closed source (and moreover, non-free) behemoths. I do expect that it's only a matter of time, though.