If you bothered to read the whole thing you would realize it said this
"Next each team in each pool was randomly drawn into one of the four groups (Groups A-D). If at any point a team was drawn into a group which already had a team from their region, then they were placed into the next alphabetically sequential group. The only exception to this were teams from EMEA, which as a result of having the most representatives at the tournament, could have two teams drawn into a single group."