Why is it that the setting queue in progress doesn't prioritize actual dungeons in progress? I can't imagine people using it very frequently except with the intent of filling a lost slot for a friend, LS, or FC member. I know people might claim its open to abuse, but that doesn't change that people will continue to kick (or disconnect) for legitimate reasons. Why is there no way to join a friend's dungeon in progress? Why does the system add you into fresh groups nearly every time when its clear you wanted to join one in progress, why else would you want to join a dungeon in progress randomly? This should be considered in the future.

Disclaimer: I don't care if you think this is intended to be an exploited method of replacing people for FC members and the like. If you had intended to have a full group of friends then you would have joined as such. The benefits to this outweigh the minor risks. I won't be replying beyond bringing further attention to the issue.