No, although it has been suggested all the EqG "monster" forms were overwhelmed by the magic they had gained, and lost control to a single, dominant emotion (although in Sunset's case, she fully understood what she was stealing; Twi by contrast must have understood by the second or third example that she was literally draining the magic power from the students, but continued doing it, so is hardly devoid of blame)
I feel that the line reflects Sunset's understanding - that she was "saved" by being given a second chance by those she had wronged - if you look at her pheonix song, or the forgotten friendship feature, you can see how much she owes to the huMane 5, and in literally reaching out to SciTwi, she was "paying it forward".
In both cases though, Sunset and SciTwi were consumed by a selfish emotion, and became "nightmare" forms of themselves; it is interesting also to contrast with Gloriosa; while she was from one point of view acting out of a desire to protect camp everfree, it is hard to assert she was acting selflessly (hence her overwhelmed form was at best neutral, and shading towards evil). Sunset in Friendship Games was motivated by a selfless desire, so was shown as a much more pure, positive form. As she says herself, she became something beautiful - but she had let magic turn her into a monster too.