That’s a good point–I can see why the companies would put sound-related stuff at a low priority if the intended environment is already loud to begin with.
I actually honestly can’t see why that is impressive, really. What is this in comparison to?
(Bear in mind that what I grew accustomed to is the audio in video games, where even indie companies will typically have a dedicated composer, a dedicated sound effects person who’s different from the composer, and a full cast.)