Swine as a conceptual song is amazing, and also very usable in the gym. It would have benefitted as a song with the acoustic intro and rock sound of Swinefest, but for what the song was going for and what it's about, the production is fine sounding as unnerving as it is.
Every complaint about Swine's production shows ignorance because it was meant to sound that grating. So yeah, stop w/ that.