Latency definitely, but imagine pigeons carrying 8TB M.2 PCIe Gen-5 sticks strapped to their backs. That's some crazy throughput rivaling most domestic internet connections.
Rings true for me. In my younger days I was "privileged" to catch an early morning flight to San Jose with a stack of tapes that I then drove to Palo Alto. All because a RAID array had gone kaput and tapes in a carry-on provided better bandwidth than the upstream from the office where our backups were.
But the latency and loss rate would make it all worthless.