Well, as far as 2B is concerned, if this Alien quickly realized her mistake in saying she could reprogram an android, she's clearly not malicious. She's even looking for alternate ways!

"He likes taking apart machines." It's always been a constant with him. "Maybe if you worked with him and offered some of your technology to him." Of course, 9S might think something is up and think it's a trap... But, then again, the allure of taking apart an alien made machines might be too strong for him to resist.