To both sides.

Don't like the way people play? Don't use the duty finder.

This is only an issue in the duty finder because your forced up with people who have a unknown skill set and attitude.

This is a mmo people try playing it like one and find people who share your aspirations or lack thereof. If you group with randoms this is the result.

I know SE makes this game hard to actually form a community, but crying about random people solves nothing. Ask for better community tools if you feel left out of the accepted norms of the game.