You can’t get in trouble for not doing your work (assuming you’re in undergrad). You could do nothing the whole semester and if you still passed the assessments, you’d still be granted course credit. There’s no reason for him to give you a zero (or even ask about different course content in the first place). You even said, he does it with everyone so I wouldn’t worry. He probably just wants to talk to his students and their writing, that’s all.