Based on what I've seen, this is likely the case. A week or two ago some of my friends were unable to get into the game and another had serious lag issues and kept getting disconnected. Meanwhile I had no issues. Last night the login issue hit me and it took 10+ attempts to get it. Once I did get in the game worked just fine though. Those same friends reported they had no problems whatsoever. If the attack was targeting SE's data center everyone would have problems; if it was targeting me I would have problems with everything. Since neither of those was the case it stands to reason that some router in the middle was affected.
