This can indeed be a pain. I have the MSI one with 2 pins and ended up plugging the fans in a PWM header on my motherboard and have speedfan control them based on the gpu temperature. This works just as well.I'm experimenting with both in my Realan E-i7 case right now but I'm struggling to get the low profile 1050ti GPU's 3-pin fan output to properly control a pair of these fans. I know some of the other 1050ti low profiles only have a 2 pin fan header.
On topic: I think I like the vented front the most. Being the conservative option, it might be interesting commercially as well. But seeing how fast the previous Lone cases went, I'm not sure that's much of an argument