I observed luggage pick up on several occasions last week. The luggage wait doesn't seem much longer, than in the past, at MCO. U.S. Air is the worse at getting luggage in, but the have always been slow. Delta works the fastest that I know of. I saw luggage coming out for Jet Blue when there were only 10 - 20 people around the carrousel, meaning the whole flight hadn't got down. In the past few weeks I have waited with passengers for luggage maybe 10 times and have not noticed any extra wait times on the luggage. I will be more aware of the luggage wait times at MCO, just so an ugly rumor doesn't get started. With the luggage that Disney picks up luggage should be no problem compared to the past.
I have only waited an hour when the luggage was lost or the passenger put the Disney tags on the bags and thought they were going to take their luggage out themselves. That happened two or three times at the most. The average wait, currently, is about 15 minutes after you arrive on the baggage floor.