Now SATA is another matter entirely. A slight bump and the drives are toast; expensive heavy toast.
Why would Sata drives be more fragile than IDE drives?
As for bent pins on IDE connectors, in my years working on business computer systems I've done it several times. It can be difficult to reach round the back of the unit and know for certain that the cable end is properly seating into the Hard drive connector or isn't off to one side, about to bend the end pins away. Experienced techs know this, those who have NOT had much experience with computers night think it's carelessness, until they do it themselves....
No, the pin having been bent back and forth (once) won't compromise the operation or condition of the Burner in any way whatsoever.