I think it's a bit of a pain to play in CC just because of how long it takes to paint your next motif. You become a really attractive target for stuns and such because not only are you a sitting duck for an extended time, but successfully cancelling the cast also postpones their next opportunity to apply burst damage. It frankly feels like PCT was balanced around Frontline and not CC. Because it's much easier to prep your burst phases in a slower game mode, you can achieve pretty insane damage output and frequently end up at #1 on the list of damage dealt to player characters.