Rest easy, Puccaw. An average sized emu leg weighs 7 pounds (the bird is around 5 ft. tall) and the average wholesale price for even ground emu is $3/pound. Disney's certainly not going to take a $15 loss just to serve a massive drumstick. Also, emu is red meat. The turkey legs Disney sells are about 1.5 pound and probably come from an old tom turkey. A tom can grow to 40 pounds or more in 20 weeks.
I wish that would settle the question, but logic is nothing compared to internet rumor.