The update is huge, the content is massive. 2 Entirely new zones, a new trial, loooooots of quests to do, crafting and farming(even fishing) additions. Xbox and PS4 have large updates mainly because it is an equal playing field and it allows any player to run the graphics the game is optimised to for the immersion factor. I don't understand why people would whine about the developers actually doing work to make sure the game runs smoothly. :S

The servers will probably not be back up for another 4 hours, anyway. Let them work and do the thing!