I don't think anyone should have expected full, detailed and descriptive answers. These Q&As never amount to anything except for the devs answering questions we already know, or them answering people praising the game.
When it comes to the real, tough questions, they either ignore them, or say stay tuned for more info.
This is with every company, not just the Live dev team either. I always feel these are pointless for the real hardcore sim gamers.