The reason shortages are somewhat long-term is we want to give players ample time to adapt. But I hear you.
I'm not sure I understand, adapt to what?
To shortages themselves

Like, you might want to visit all your planets, change quarry/refinery orders, maybe wield your mining gear and start stacking some ore/materials/components, etc. Would be pretty inconvenient if the shortage then got away from under you, while you're doing all that.
Regarding the inventory fulfillment to planets by others, haven't tried this recently. Does it still allow players to land on your planet to fulfill orders? Because if it does, it does open up a door to espionage or malicious intents such as dropping off alien virus. I probably wouldn't use this feature unless there was a secure way of doing it, like a loading dock on the planet that wouldn't allow players to see any activities or tamper.