Hi dlhotka,
That statement is true for Fusion 7 and older.
For Fusion 8 and up VMware has reworked the USB3 adapter to emulate an intel USB3 port and then worked together with intel to be able to use one of their drivers.
So you would still have to install an additional driver, but it has been reported to work.
Have a look at the following KB article for the details: http://kb.vmware.com/kb/2128105
--
Wil