Balconies is one of those weird areas where the customer doesn't always know what they want. Developers have long figured out that people don't really want or use their balconies very much, it's far better to put the money into just having a bigger living room or what ever. But it still remains this thing people will complain about. People complain about tiny balconies on developments, but the market proves they aren't willing to actually pay for them.
If you want huge balconies check out Lyra on christmas hill, huge wrap-around balconies on every floor. But you'll be paying for that luxury.