MLG operates MLG.tv, the #1 online broadcast network for professional level competitive gaming; the MLG Pro Circuit, the longest-running eSports league in North America; and GameBattles, the largest cross platform online gaming tournament system with 9 million registered users across the globe.
Keeping the Surface Connect port and making the Surface Dock compatible with the Surface Pro 3 in the process instead of replacing it with a symmetrical and reversible USB-C port is a tradeoff I posit Microsoft thinks is worthwhile at this stage.
On the left or right side of any Surface tablet, there is a full-size USB port, Mini DisplayPort (or a micro-HDMI port on older models), and a magnetic charging port or micro-USB charging port (Surface 3). All Surface devices have a 3.5mm headphone/microphone jack.