Nobody would argue that USB 2.0 is current. Everyone knows 3.0 is faster. As for their boards "sucking", that's is based on opinion.
With that said, it appeared that they used 2.0 for those that had ROG boards previous to it's release, and not just for the here and now. But the real problem here is, so many want the newest thing ASAP. And they want it for cheap, and they want it at the highest quality possible. USB 3.0 is still a little pricey, USB 2.0 has matured and in abundance. You gotta cut cost some place.