Doubtful. A big college hockey crowd on NBC Sports Network draws maybe 150,000 viewers, and NBCSN has a much larger potential audience. If there is a difference in the number of viewers between CBSSN and FCS, you're talking about maybe a couple thousand either way, which is pretty insignificant.
The NCHC isn't making any money on their TV deal, and it wouldn't be a huge surprise if the schools were actually paying in to get on TV.