An official parser would be a totally diferent matter, as it should be part of the game itself, not a third party program. But parsers as are now are kinda the same than memory dump readers.
Though mostly instead of an official parser would be more helpfull an dps/output dmg meter, or whathever other kind of measurement you need. So unless you are developing your custom meters, or making triggers, you not need a parser in the full sense of the word.