Originally Posted by StuckInYYZ

You're asking for a lot of additional manpower/co-ordination to be done that could hamper the food and drink trollies. Consider:

1) Getting the special/BTC meals out first makes it easier for the cabin crew to identify who needs to be served still.
2) Usually the drink trolley follows the food trolley. Which means that the food trolley people would be asking the drink trolley people to get the special/BTC meals to get the special/BTC meal for them (as they would be sandwiched)... slowing the service down.
3) Serving the BTC/special meal last... you'll get complaints from many of those people just like you guys are complaining here.

There is no easy solution as all processes have many drawbacks.