Keep in mind it was only up a short time before issues arose. Could have been that people were busy or had plans, etc, and couldn't play at that time. Maybe with all the server issues of late, they wanted to make sure it was stable before dedicating serious time to play (ie: the Forge).
Since there hasn't been a major campain in ages, not having this one go regardless of the player numbers will no doubt doom this game.
I for one would not like to see that happen. If there is only 4 a side, who cares, lets give'er!
We've all flown together in the early years, possibly from the old Starlance matches and up, so lets do this and have some fun!