Seriously, we counted them. There are around 30 unarmed pilots plus Queen Amidala and her retinue of defenceless handmaidens just standing around in the middle of a fight between the Jedi and a couple of dozen combat droids armed with blasters. And not a single person gets hit.
At least Qui-Gon has an explanation.
Obi-Wan: This is surprisingly easy, given we're defending forty-odd unarmed NPCs from dozens of combat droids.
Qui-Gon: Well of course they're not going to risk hitting their evil traitor leader, Bubble.
GM: Bibble's not even in the hangar. He's waiting outside.
Qui-Gon: Ah, directing his forces.
GM: He's 53 years old! He's not going to run into a combat zone!
Obi-Wan: The droids must be programmed not to shoot anywhere near the Queen. They obviously need to take her alive.
Qui-Gon: I wonder how much she's worth to them.
Qui-Gon: Hey Bubble! What are you offering?!
GM: The droids are all neutralised.
Obi-Wan: There could be reinforcements. Let's go.
Jar Jar: Thissa way!
Qui-Gon: Hurry up! I need to shut the door before Bubble can get on board!