No offence or anything, but is there anyone here (except myself) who believes Patrick when he said they tried shorting the connectors on the heatsink and it didn't harm anything???
If the "issue" has been brought to castle's attention, and they claim they have considered it and torture tested this units, with this particular possible point of failure in mind, and it survived with no harm, why question them?
That said, I have 3 V2's box stock that haven't missed a beat, so maybe I have undue faith (I seem to be having better luck than anyone else out there)...but I don't reckon you should worry about it