FWIW, I *was* able to separate the LCD from the housing on my device with a broken screen (I ordered the wrong replacement part from etrade -- oops!). Unfortunately this required chiseling away at glued-on glass for 90 minutes over a garbage can.
If they had chosen to use a lighter adhesive on the screen, they could have dropped the cost of screen replacements from $200 to $150.
I would recommend not removing this as part of this step. You can easily slide the drive under the speaker wire -- just lift it from the side with two screws carefully.