The current RFA situation is such a hardcore gauntlet that I'm not surprised the number of candidates has not gone up with the increasing amount of users. Wikipedia will end up with a lot more problems once there aren't enough admins. To me, having too many admins would be a dream come true.
How much do we need admins? Let me count the backlogs....oh look, every admin page except for RFP and AIV appears to be backlogged!
In part, I blame myself. I don't participate in enough RFAs, and I've only nominated one editor for adminship in all of my time here. But still, this is a zeitgeist we're talking about. It's controlled by the community, and we're taking ourselves in the wrong direction.