Something tells me that it survived better because it was an SD card, big flat contacts.
If it were a CF card with lots of tiny holes, they're just asking for corrosion coming in, maybe welding the card into the body.

(although, if you can get the card out, I'm sure I'd have no problems with some tiny solder-work and hacking apart a card reader to connect it all, god i hope I never have to try on my own cards for a reason as this though)