It could, yes, but this is shaping up to be the kind of choice he needs to make for himself. [And that's not something Naoki can deny Eren in good conscience - not after he fought a god over the idea of being able to make potentially stupid choices for yourself.]

At least this way you know you may need to keep an eye out for him. I wouldn't want to send him into that without at least some kind of heads-up.

[He completely understands that they don't want their friend hurt, but Eren almost certainly doesn't want his friends hurt, either, and since it's unlikely he can pull them out of Harrogate, he'd probably rather have a chance to be there with them.]