I was unaware that Anthrax, As I Lay Dying, The Devil Wears Prada, Slipknot, and/or Slayer is/are also signed to Sumerian...
Can you not read? The "Sumerian stage" featuring Upon a Burning Body and I The Breather, as mentioned on the article sounds quite out of place beside a lineup of large and established bands.
Nice try with the sarcasm though. Better luck next time.