There is nobody who has really given me a real reason why we ever had to abandon pcie 8 pin.
The supposed reason was... eurhm... power increases? It 'didn't look nice' to have 4x 8 pin next to each other? (Makes you wonder what magic happens in people's heads when there are instead 3 of those plugs... which has been the case for years and still is)
There is no size constraint on GPUs to not just have a 4th plug on them. Heck, get creative, stack two on top of each other and side by side, you'll still not exceed GPU height and you'll be using what, 2cm width over 12x6?
Its a complete clusterfuck that gets us nowhere, except into buying new equipment, adapters, and applying workarounds to make sure said new equipment keeps working properly. Do anything wrong? User error!
Keep it Stupid Simple.