Obviously I'd prefer to ask specific questions to my expert human friend sitting at the next desk over, but sadly they don't exist.
I just hope there is a future where this tech exists without such big downsides.
Even the data centre using this probably uses less net energy, and costs less, to build one of these dumb arrows than the aggregate sum of the energy used to keep you alive while you Googled for the answer. (Including heating/cooling the building, powering the equipment growing the food you eat, etc.)