Hi PlemonsBrett,
Rick’s reasoning was mainly the file size. He did not use any high quality audio file in the first place. He recorded a few sounds at home with a normal microphone and a normal computer. Nobody wants to download several gigabytes of audio files just to hear every single detail of Rick’s low quality audio. (Well, maybe there is an exception.)
Furthermore, most people use rather “cheap” hardware. Even if they were audiophiles (meaning those with a rather “cheap” computer), they would not notice any difference between high quality wav files and compressed mp3s. When developing a game, we always have to keep our target group in mind.
Nevertheless, in the end, you are the developer of your game meaning you will have to decide yourself what makes sense in your game. If you feel that your game needs high quality audio files and if you are able to get/produce those files, I don’t see any reason why you should not use your preferred file format.
Also please feel free to ask our helpful community of students for additional opinions over on our Discord chat server. 
See also:
- Forum User Guides : How to mark a topic as solved