UPDATE: Q13 was able to find out a bit more about the plan to allow vaccinated sections. The Sounders have so far said it’s “too early to comment” but a quick look at the guidelines makes it seem likely that a mass rollout of this plan would likely need to wait until the next round of ticket sales, which will start with the June 23 match against Real Salt Lake.
Essentially, the guidelines call for vaccinated sections to have their own entrances, exits and concourses. To do that without displacing people who already bought tickets to the next three home games, the Sounders’ only option is probably opening up the third deck.