It's possible to configure every single sound of every other mod, but wouldn't be more simple if the user also had an ability to modify every sound of a particular mod with only one slider? I see the keys describe what mod uses a specific sound, so it shouldn't be a problem to also divide sounds by mods. I'm not saying to replace each mod sound config with just mod sound config, I just want to have an additional config option for a full mod.
It's just that in my experience usually it's not some sounds in the mod that are loud, but the entire mod is too loud.