- Overall, patch 5.4 was a very smooth launch for them. The servers even came online earlier than expected.
- In EU they had to temporarily nerf the Celestial bosses on the Timeless Isle because of the massive influx of players trying to get their legendary cloak. Boss health was nerfed by up to 80%, and some abilities were removed entirely to facilitate a steady rotation of players without negatively impacting server performance.
- The rush for the legendary cloak was more of an issue on EU servers because EU tends to have more hardcore raiders, and their time zones are more compressed leading to more people playing during prime times.