Punishment for players who aren't social?
There are a great many things to do in World of Warcraft for players that prefer to be less engaged socially, such as Raid Finder, Dungeon Finder, PvP queues, questing, etc. The fact that there are pursuits in the game oriented toward organized gameplay isn't a punishment.
Quite the opposite. Heroic scenarios represent a reasonable challenge. It would be misleading to present a queue, since in other cases they exist only for gameplay elements designed specifically for randomly assembled groups, and for those players who queue to struggle because the content wasn't designed with random queuing in mind.
I know it would mean stepping outside of a comfort zone, but if you want to try them out, maybe you'll actually find that you have some fun finding other players on your realm to explore them with.
Aww...first time I'm ever quoted by a blue and I was being silly. I definitely agree with the sentiment that it just isn't intended to be done with a random queue. I think it is a good thing to encourage people to work in teams smaller than 10 again since the social part of the game (outside of guilds is dwindling)