Sometimes it just works out that way. I flew home the Monday before you and had abot a 10-15 min wait. Orlando is notorious for long security lines and they are plenty of times when they are an hour long (I have been in one of those before so I believe it!) Once in a while, they are a walkon. More normally, I seem to wait 10-20 mins. The number of switchbacks in the queue is astounding (last trip I joked that it was just like a Disney ride queue...without all the interactive fun stuff!). Just depends on flight schedules.