I am quite sure there will never be an official parser, but what I am 100% sure of is, that if they add it one day, there won't be people who just autoattack anymore.
Such people would be kicked from any party with no mercy and honestly I see nothing wrong with that, by going into duty with other people and then just doing autoattacks or rotating 2-3 skills people are being 10 times more toxic than anyone who would kick them. Wasting time of X other people who literally carry you trough while you don't even care is the behavior that needs to go.

Everything can be misused, if everyone was afraid of that, we would still live in stone age. The only thing that would happen to DF after implementation of official parser is, that dungeons would stop taking 40+ minutes if one DPS decides to play other game on second monitor while autoattacking/ using random macro with 3s wait command etc.