I do commend them, especially Dave Gruel, for having thought about the blindness population as a reason for installing the microphones. Few entities take us into consideration, so I feel like we're moving in a right direction. I surely hope more sounds are recorded, so that we can have full soundscapes eventually.
[Here's an article] that talks more about it.
AKA TheHarmonicRainbow and HeavenlyHarmony