This is an unfortunate consequence of the data mining arms race IMHO.
Coming in 8.2 they are getting rid of 99% of the filenames. This is why sound file mods are going to break. Sound file mods work as they override existing file paths making your custom sound play instead (or play silence in the case of silence mods) . If there’s no names the code that would normally override an exisiting sound in favour of your custom sound never works as it literally can’t find the sound you want to replace.
Unfortunately Sound file mods seem to be the only non Addon related mod particularly affected by this. Cursor type over-rides haven’t be possible for years now (afaik) . Custom fonts aren’t affected by this change either (afaik).