OTHER than in the event of an accident, under what circumstances and how frequently is FDR/CVR data accessed? Not often? Then real time remote transmission/storage (and its technical challenges, complexity, fallibility, associated bureaucracy, costs and other hurdles) seems like an unduly expansive response to the problem at hand.
Like most black boxes, SJ-182`s FDR was retrieved and read efficiently. It is SJ-182`s CVR which proved difficult to locate (in part because the ULB separated from the CSMU sub-assy of the FA2100-style recorder.)
One solution: enhance legacy FDR & CVR devices to be more reliably easy to find.
K.I.S.