I do not think you understand how things work, mainly life in general.
The majority of the public wants a vote to kick feature, of course this comes with many limitations to attempt to keep people from abusing, but YOU ARE MISSING THE POINT.
A vote to kick feature serves one purpose and one purpose only, TO KICK a person or persons out of the group due to majority vote.
The reason does not matter, sorry it really does not.
If you are in a group of 8 and NO one else needs to watch CS, sorry but they should have the right to vote kick you. What else would it be for?
I myself do not use the DF to find party members, but with the new features coming up on 2.1 I likely will quite often.
If I get qued with someone who is wasting the parties time by randomly afking and not doing their best to progress the dungeon I should have the right to initiate a vote kick.
Sorry if the reason behind the vote kick bothers you, but that is life, grow up a bit.