I was thinking that perhaps an algorithm in the Linux Mint installer could detect if any Bluetooth-capable hardware is present on a system. Then, if there are Bluetooth-capable devices, install the Bluetooth software on the computer. Otherwise, there is no reason for the Bluetooth capabilities to be installed. Its not too much of a pain to remove them, but it would make Linux Mint more out-of-the-box ready than before.
I'm 95% certain that my computer is not Bluetooth-capable, and I know that the Bluetooth drivers and things were installed, so I don't think something like this is in place.