Originally posted by S_W_LeGenD
I noticed this:Whispered rumors have persisted of planets snuffed out through intricate Sith rituals or by way of deadly, arcane machines--such as the device Revan sought to employ on Yavin 4
From [B]Star Wars: The Old Republic: Rise of the Sith Emperor: Codex Entry titled "Death of a World."
That machine had the power to eradicate all life on the planet. Suffering a backlash from a machine so powerful is going to kill most, IMO.
Does this answer your question? [/B]
Revan was only channeling enough of it's power to wipe out life in a 1km radius. Nothing states he was harnessing the Temple's full power; rather, since his goal long- term was to kill the planet, it's unlikely that he would do so.