The way I read his comment, is more of an meme towards the connectors than facts... Since no connects actually needs cooling, hence a meme.
Meme? At some point power draws from GPUs will exceed the guage of a wire and said wire will overheat and melt. To alleviate that we have 2x,3x 8pin connectors. I don't care if its user error as to why those connectors melt, unless there is a full redesign we will approach the ceiling of what AWG will be needed. Nvidia are one step ahead of the curve with the idea to create 12VHPWR connectors. The hint is in the name. 12V High Power.
My point is that secondary benefits of passive cooling can be enough to differentiate with cable/connector deformation, and stable transfer. If you can drop plastic a few degrees to prevent softening, that will keep badly angled cables rigid. My guess is these got hot, softened enough to deform and in doing so increases the angle leading to worsening effect.
Over the top thinking? yeah maybe, but id rather over engineer my investment on a 25000Nok card than being stuck with a door stop when the E-tailer blames me and refuses a replacement.
From my understanding, PCI SIG is working on yet another HPWR connector that is not being invested by Nvidia or Dell. My biggest issue with every card made today, and perhaps its due to PCB design.. that they are all placed on the side of the card even while GPUs grow in size reducing the distance between GPU and side panel.
EVGA got the memo before everyone when they created the power link. We need more of those, or readjusted placement of connectors to provide better security/aesthetics or freedom.
tldr; brands use multiple connectors as heat dissipators, but you can only use so many before a rethink is needed.