Let me tell you powering these drives on and off is far more dangerous then just keeping them running. 10 years is well in the MTBF of these enterprise drives. (I worked for 10 years as enterprise storage technician, i saw a lot if sh*).
Not saying this is totally worthless but the magic of Airdrop is that people do NOT have to be on the same network and that it does not need any network infrastructure in the first place.