It won't be intentional but it happens a lot with these kit guitars. Often the main part of the neck is flat but the fingerboard itself is either slightly angled or it's been radiused unevenly, so one side is lower than the other.

A vert small angle is not something you notice when playing, as it's just like having the guitar body angled very slightly differently when you play.

It's hard to get rid of that small gap without attacking the top of the neck join, but that would move the neck back a bit too far to allow the edge of the pickup ring to sit on the forward edge of the pickup rout.