I correctly expected "wireless-free" to mean no support for wireless connections, which to me seems the simple and obvious interpretation. It doesn't necessarily mean it's wired (data transfer could be limited to removable memory cards), but B&H says:

"The camera does still have a series of ports for physical, wired connections for data transfer and power supply"

It means exactly what I expected. The wireless connectivity has been removed (for regulatory compliance in situations where wireless isn't allowed), but wired connectivity is still there.