Good to know the why. Ours (Comair's) doesn't say why, it just says to initiate descent (if required), maintain 205kts below 8000', set landing elevation when below 8000', END OF PROCEDURE.

The way I read the QRH, it suggests you should descend to 8000'. This isn't the only place the QRH is poorly written. I guess that's why we have a radio to call dispatch?