I have absolutely no idea how well I'm doing as a healer or a DPS, especially when compared to how well I COULD be doing, if I don't have any parsing system that informs me of my healing/damage output vs. other classes.

I know all of the arguments against this and I couldn't care less: Placing "hurt feelings" above giving players the ability to determine what rotation works best is nothing short of INSANE.

Moreover, the data DOES exist, we just have to crawl through logs to find it.

If hurt feelings are a problem, then let me see MY healing/damage output. When I change something, I want to know if it's helping or hindering me.