Lousy planning is evident throughout the film. (SPOILER)For example, Starfleet gathers all its officers in one room and Kirk has to point out that they're sitting ducks for a terrorist attack - which, of course, immediately happens. There also don't appear to be any defences in place protecting the secret Section 31 installation, which is how Thomas Harewood was able to blow it up so easily. Seriously, you're singling out that one instance of lousy planning as bad writing? It's pretty obvious Starfleet don't have their trout together at all, and this is repeatedly shown throughout the film. It's perfectly in character that an organisation with so few safeguards protecting its own buildings and personnel wouldn't have one in place for large objects plummeting towards earth either. There seems to be a presiding attitude of either arrogance or complacency causing Starfleet not to prepare for attacks and accidents.