One application that could be rather useful, for this standard(or even ones that use spectrum with even worse distance issues) would be the possibility of reducing the number of delicate connectors for devices that are docked/undocked frequently.
It's hard to beat copper for transferring power(yes, the various wireless charging schemes do work; but efficiency isn't pretty); but, particularly for low voltage, modest current, DC applications where ensuring safety is less of a challenge; you can use simple, robust, cheap connectors.
Connectors for high speed data are less pleasant, requiring some balance between very careful construction to allow high speeds over a limited number of lines and densely packing a whole lot of signal lines into something that still has to survive hundreds to tens of thousands of mate/unmate cycles and hopefully doesn't attract grit, pocket fuzz, and so on.
If you have a very high speed wireless link, even one with lousy penetration and high attenuation in air; you can potentially replace a complex and delicate data connector with one radio-transparent spot on the device chassis and one on the dock: no hole in the chassis, no connector to get damaged or full of crud, no fiddly pins getting bent or corroded; and since the two radios are very close together(ideally in a known position) power levels can be fairly low; and interference and noise would be less troublesome.
Given the issues with atmospheric attenuation; never mind walls, these very-high-speed wifi systems get rather less interesting at greater distances(though yes, SFP ports are creeping into APs
, and that's consumer trash, not even some enterprise thing); but if the price isn't too high I'd be delighted to never see another laptop docking station connector again.