Company started out before wifi was a thing, so everything was designed with cabling in mind.

At some point in the 2010s, smartphones gained a lot of popularity and data plans cost money, so users were asking if they could have WiFi in the office. A decision was made and AP would be installed in the building to accommodate these needs, workstations were still all on cable though, so Wifi was used only for "non work related activities, non work devices". To segment them from the rest of the network, a new VLAN was created which was called, you guessed it "Wifi".

Now, this traffic was unfiltered, uncontrolled, do whatever you want type of thing, so when someone asked for a device that needed internet access via cable and not restricted by company rules (some technical demo of sorts), a port on the switch was assigned to this VLAN, and it coined the term "Wifi cable". Of course, it lacked wireless capabilities of any sorts and it sure as hell wasn't Wifi certified, but we kept using that name. It was fun.