It's a shame the things we give up for convenience no?

The developers inherently whether they want to or not promote this kind of behavior part in parcel to how the duty finder itself works. If players had to deal with the social repercussions of being utterly terrible at their job as a DPS/Healer/Tank the amount of people who just don't care would be down dramatically.

The drive-by nature of the duty finder lets people get away with not doing their job because other than the odd dismissal they don't get any blowback at all and because there are no punishments for their character they can repeat this cycle ad-neasuem. If the game required you to group up with others by making a party like the party finder then you know you are accountable for your actions (Socially at least).

The same could be turned around as well though, some people run into the duty finder expecting everyone to be knowledgeable about every detail of a dungeon and every intricacy of their job.

People in general expect far too much from random grouping.