It falls under "obtaining a competitive advantage over other players" in the EULA. Or in other words, exploiting, which can oftentimes result in permanent account suspension based on the severity of the exploit taking place. The fact that these actions were premeditated won't help their case with Blizzard's customer support staff. You can say you were testing the encounters as much as you want, but the straight facts is you did something with the full intent on gaining a competitive advantage over other players and maximum punishment should be expected.