Why can't we have the ability to create accurate Parser?

[Verius_Nox]

If your time is so limited and precious then Duty Finder is not for you. Find some friends, LS, FC.... Don't count on DF to find you 3 perfect party members.

Wrong. DF is for people who don't have a lot of time to devote and want to get a quick dungeon in.

When I roll in as a tank, I'm expected to know my class, know how to keep threat, know every boss, know where to lead people, know where to position mobs/bosses, and know when to interrupt/stun things. Failing ANY of these, I would get vote kicked, harassed, and bullied WITHOUT THE USE OF A PARSER.

Why is it then the moment a damage class is in question as to whether or not they're playing their class correctly, it's this giant problem?