Morning everyone - first post but wanted to throw it out here.
USB dongle support is working on 10.11 (15A215h) - in VMware Fusion (Macbook Pro Air Mid-2012, 8GB Ram, 500GB SSD). The dongle is recognized by the host OS, but not able to be accessed by applications. However, the dongle is able to be accessed and communicated with inside VMware Fusion 7.1.2 (2779224). I recently upgraded to El Capitan and had issues with my Fitbit Base Station. It works flawlessly inside Windows 10 Tech Preview via Fusion.
Perhaps they are on their way to fixing it - albeit possibly a backwards approach. My VMs are considerably more sluggish after the upgrade to 10.11.
Hope this helps...