[2019] Devs, why not use Steam Audio or Google Resonance to fix sound positioning?

Originally posted by ClassikD

One of the biggest complaints in the game right now is the lack of proper positional audio. Proper positional audio is hard to replicate, but libraries for Unity like Steam Audio and Google Resonance exist and give great results very easily. I was wondering if you are opposed to using something like Steam Audio which essentially does most of the work for you including occlusion, reverb, binaural positioning etc. If you guys are rolling your own, when should we expect it?