Because people have every right to vote-kick someone or anyone out of the dungeon for any to no reason at all.
Groups are empowered to manage their own members through the vote-kick system. If the majority of the group feels a player should be removed, they can initiate a vote-kick to remove them. The system is entirely under the control of our players. Players may choose to remove any other player from the group for any reason, provided the vote to kick passes.
It is based on group majority. If the majority of the group agree’s with the kick, then the kick will pass.
They don’t have to like your mog even, and they can initiate a vote-kick to remove you from the dungeon.
Is the system perfect? No! But what is the other solution to avoid getting kicked: Group up with friends or guild members and queue for the dungeons. But people have every right to initiate a vote kick. If the majority of the group agrees, then the kick will pass.
I have yet to see any actual sources to this.
There is no abusing of the system.
So, you didn’t want to work as a group, and wanted to waste the other party members time. Sounds like a good reason for the kick.
Right here, from Vrakthris: