I'm not sure how they were qualifying the math, but 1 free reroll on someone you have to choose beforehand per day and some situational scrying abilities do not hold a candle to the healers constant usefulness. I love the concept of the Oracle, but there is no way they are on par. Especially considering that the 6th level feature makes the 2nd level feature useless. It would make more sense to just do away with the current 2nd level feature and give it something else in its stead that's not another drain on its CD.