This is kind of in the spirit of the realignment in the IJS generally. In 6.0, it was 50% tech, 50% performance. It was rare that there was a big difference, because the judges could just make it come out approximately even if they wanted to.
In the IJS, it is 50% tech (base values plus GOE), 30% presentation (choreography, interpretation and presentation), and 20% overall skating (SS and TR). When someone like Kostner gets higher PCS than TES, it is in part because she is a better ice skater (a technical category), not just because of being graceful and performing an emotionally and esthetically satisfying program.
Conversely, a big jumper who also has good skating skills and transitions won't be too far off, even if her artistry is immature.
Skating skills and transitions are also subjective to a large extent. That is demonstrated by the fact that skaters generally receive similar scores across all 5 PCS factors. I've never seen a skater score a 9 in skating skills but a 6 in everything else, or vice versa. As far as transitions go, according to the scores Carolina had more/better transitions than anyone else, but I don't see how that's possible when she does more crossovers and more telegraphing into jumps than many others. Skating skills is quite subjective too. Continuing with the Carolina example, she got 7s in skating skills 2010 and earlier, Yuna and Mao were placed way ahead of her in skating skills. But then at Worlds 2013 few years later suddenly her skating skills were as good or better than Yuna's. (Not criticizing her, I think Carolina was underscored in those earlier years).