Both shadow Priest sims seems off. The proportion between Vampiric Touch damage and Shadow Word: Pain should be VT doing 25,6% more DPS SWP. The sim however has VT at 48,4% higher DPS.
There only possible reasons for the disparity would be relics for VT damage or the San'Layn talent. Neither are however in the profile.
All in all it seems both shadow priest sims are about 3% too high damage overall.