While most of your statements are correct, this is not.
Nascent Flash completely outvalues Raw Intuition you may as well think it doesn't exist, Nascent Flash can be shared with another player and using it during Inner Release/Infuriate the Healer can completely ignore you. You don't hold cooldowns until a buster shows up, you use cooldowns efficiently timed to a point it's back up for busters vice versa. Having your cooldowns soak a lot of auto attacks and damage mechanics is just as good value taking a tank buster. It's another good reason to let the OT take hits to use their cooldowns instead of DPSing with no involvement making the Healer burn all their OCDs on the MT.