It was a general remark, I think. It is a good habit (I personall tend to, as well). But then it is more of an issue in boards below 6mil/6mil (trackwidth/spacing). In your case that should not be a concern. Go ahead an let them do their thing.
IMHO, at certain point, however, it is good to have basic knowledge about PCB manufacturing to put things in perspective.If you are interested in infos there is plenty of stuff about PCB manufacturing process in the www. Maybe you want to watch one of the many videso that hang around in Youtube covering the issue. There's a lot of decent stuff in various channels.