The commenter who mentioned that most of DC's creative interactions are telecommuting captured the overall relevance of this move.
Plus now the execs get to be closer to WB to play their face-time politicking (my brief foray into the world of executives taught me that these guys do most of their scheming offline, hence you need to be hanging around the office to overhear and interdict.
And, on the bright side, if the Taliban or Iran ever gets its nuke, they can rid America of the totality of its artistically bankrupt entertainment in one fell detonation....
Really, guys... you seriously all want to pack in to Los Angeles? Hell, move to Barstow. Property is cheaper, traffic is better, and it's a 30 minute flight to Burbank..... HOW MANY MORE PEOPLE CAN YOU PACK INTO LA BEFORE IT SINKS????