Our AAAtravel agent told me that Disney is backlogged in getting these out and are sending separately. When in doubt, use the normal baggage tags with Disney logo and ask when you check in at the airline if there is anything they do...
When you land at MCO, seek out the Disney Rep for transportation and ask to get your luggage, assuming you don't get the tags in time.
But don't let it ruin your trip in advance, Disney is tops in customer service and will take care of you. Seems like this is an issue they know about...