I don't see much harm in it. You could even add this to the field spell's ability so that we don't even have to remember it as a ruling and whatnot:
[quote]While there is a "Steelswarm Scout" in your Graveyard, you can return this card to your hand during your Standby Phase.[/quote]

That way, it goes right back to your hand just in time for Scout's summon, then you can just reactivate it from there.