I think the queues dropped because Keen closed the option to get into her queue. A few weeks, or maybe a month or two ago, I was trying, and I either couldn't access the queue (it would only offer the option to make an appointment), or when I did get in, I would go back and check a few days later, and find I had been kicked out. I told Keen, and they said they were aware of the issue and had been working on it.
And yes, her queues used to be over 100 long with no opp for an appointment, so be grateful it's under that!