That's what Trey said in one interview, that he tries to write songs that are enjoyable even without vox.
My dream would be a Gateways instrumental version
Do you listen the instrumental version of Heretic songs, and Complete Acid Terror, the instru. version of Kingdoms?
What do you think? Are instrumental death metal songs boring in general, and you need some growling, even if it's mediocre with BS lyrics?