It is not unusual for RC to conduct the majority of dialog, sometimes all dialog up through the offer. If I am player/parent, I would insist there be a discussion with HC prior to committing. You can state your awareness of the fact that coaches move around a lot and want to make sure you hear level of interest from both.
That said, I didn't hear that you have an offer from the NAIA school yet. Since you are having regular dialog and others are saying they are very interested, you may want to mention that you would like to have all the information together soon so you can start working on figuring out which school you will commit to (so, you are politely asking if there is an offer forthcoming and when). Then, you'll find out exactly how interested the NAIA school is and what their offer is, if any.