I think if you were to use the same camera right when it happens you’ll be OK, I believe the buffer on board the camera needs to feed the card data that has either been interrupted or has become corrupt and the restore function re-writes this data. If you ever have a card that has this error multiple times in a row then you should replace that card to protect what material you do have on it. I can’t think of a reason not to immediately restore a card.
When the Panasonic P2 workflow came out they always warned users never pull a card from the camera before it finishes writing to the card. Well that we have found was these alternative SDHC/Adapter solutions take longer to finish writing to the cards and no one takes the time to look at the side slot to see if it turned green. Cutting a take, seeing the Tally Light turn off is not the indication that the camera is in a completely safe mode using the SDHC cards.
Good Luck
Michael Palmer