You fail to realize in my hypothetical environment this system works with the dock and doesn't require a different dock and in fact there isn't a different dock because I don't envision needing one. While in your hypothetical contra environment nothing is allowed to work because you don't want it too. A negative, change resistant, Nelly.
learn to embrace change and be happy because change is coming whether you want it or not. Maybe SP5 wont have ports and SP4 will still have ports but the possibility is real that an SP4 could be 100% functionally equivalent without them. There could even be two designs, a Core-M fanless, portless model and traditional i5/i7 design with fans and ports. Free your mind.