Because people are in here insinuating that the meager ESRAM will do the theoretical max both ways at the same time all the time on the One, in spite of it communicating with the DDR3 RAM which peaks out under half the supposed max speeds of the ESRAM. The only way it's going to be able to even try to reach that (key word is try, theoretical maxes are normally never achieved in real world situations) is using separate links to communicate with other hardware, which at the time of XBO development the tech didn;t develop. At the same time, spec sheets around the net only list one link for both read and write operations.
It isn't the holy grail of the XBox One (like the cloud somehow making the XB1 thousand times more powerful), and it's really just a shytty bandaid solution when the real fix would just be to change the RAM type. Yet you have the same people regurgitating what the MS PR office says.
It isn't a matter of stannery or fanboyism. It's a matter of understanding the technology and not believing PR hype to get a more truthful answer about the products at hand.