It's not entirely unsual. Other games I've played in the past would gift everyone small items when the severs were down, or do a 2x exp time from whenever the player logged on for the same duration as the outage. The gifts were never anything "good" per se, and certainly not disproportionate to the inconvenience, but it went a long way toward engendering good will in the game community... something I think we can all agree is a good thing.