Why? It make take a day to fix a glitch, maybe a week to find the right balance for weapon buffs/nerfs, but it can take weeks of delay to get it though to consoles because of the systems Microsoft and Sony have in place. Any last minute changes get put in the back of the line of updates already in a queue. Sometimes there are problems with the queue so it takes longer, or something gets delayed because new priorities are found. Overall the process is much more complex than it seems.