Dude, the ship wasn't being flown into earth, it was careening toward earth. When a ginormous thing is hurtling towards earth with seemingly no signs of stopping, there should be defensive mechanisms in place. I mean, what happens if a ship loses power or like the enterprise, it's been crippled and starts plummeting towards earth? They really have nothing planned for that kind of situation? That is just lousy planning. And again, MAKES ZERO SENSE.

Seriously, what are you even trying to argue right now?

So bizarre when people try and explain away plot holes as if there are really explanations. No. There is no explanation other than the fact that they wanted to make a huge ass action sequence.