Agreed, and especially not that "canned air" which often isn't air but some sort of compressible-to-liquid CFC or something, and it gets really cold when expanding.
However, the drone does fly forward at 40+ mph, so it's probably fine to blow a...
As has come up many times on MPDC, this will require the original owner to contact DJI to resolve the issue. You'll have more success grafting gills onto your throat and breathing underwater than getting DJI to unbind this from the other account...
If you still feel the need to resolve it properly, then I'd recommend contacting DJI support and explain the dilemma, as it appears you still have communication with the original owner who wishes to unbind it, unlike a found drone where DJI won't...