@NucleusX last night I dismantled my 1080 and looked for this "gap" issue. To my surprise, there was not a single gap. Also, the VRM have been attached to the midplate via just such a thermal pad.
So, just a few facts:
FACT: There are indepdendent reports of gaps with the thermal pads on the VRAM. As I can claim that there is not such a gap on my card, this hints to a QC issue with the manufacturer.
FACT: There are claims that there is NO cooling of the VRM whatsoever. As I do not want to believe I got some sort of miracle unit where out of a sudden the manufacturer decided to patch in a strip of thermal pad, there is at least a inadequate, passive cooling solution (the VRM transfering heat to the midplate, a comparatively big surface where the fans blow on).
@OP please do not throw in several issues together. There has been already a official announcement of a bad batch of VRM. Without knowing the shipment date of your card I would suggest you check with EVGA if the card has been manufactured before 8/30. If yes, there is a chance it is part of the faulty batch. This is not an "overheating" issue. This is an issue of a part of the chips on the PCB being not up to par and thus not able to withstand the specified wear.
Just so you understand: The "ticking timebomb" is not caused by overheating. It is caused by bad VRM that wear out really fast. The logical conclusion is that everyone having a card manufactured in the timeframe before 8/30 should consider a RMA request, linking to this announcement and requesting a new replacement to prevent this from happening OR a return to the reseller if possible OR taking the risk that your unit might be not part of the affected 4% of the bad batch.