That's the stopgap solution, I think. Looking at the larger picture, it's silly that a projector only looks for video-in, instead of video-in/power-out, considering it's already plugged to a wall outlet.
You think the end game is "We'll improve the hardwire connection to the project so it can backfeed power" rather than "We'll just get rid of the wire"?
It looks like you connected a device from an untrusted Vendor ID which is enumerating as both a [display|power source|input device] and a [USB Mass Storage device]. Do you want to allow this?