Agree totally about user-side portability. RF64 has been specified by the European Broadcasting Union (EBU). More DAWs should include this format compatibility.
INFO:
http://tech.ebu.ch/docs/tech/tech3306-2009.pdf
Note that into the 3D Compositing world there are a lot of proprietary formats.
Finishing a project means sometimes to move to different applications: a real nightmare. At least where some standards are achieved - as in this issue - companies should really worry a little more about the final user. Blu-ray is owned by a Consortium composed by many companies, while DSD is Sony/Philips proprietary.