This opinion poll comes from a non-probability sample. Non-probability sample is a type of sampling method that does not rely on random chance. It does not permit generalizations of a whole population because it does not take into account a diverse sample.
With the college hockey poll, the type of non-probability sample it is, is a purposive or judgmental sampling. A specific person or media content meets specific criteria the researcher needs. National collegiate sports polls are gathered from sports professionals who can make valid opinions on the subject. The general population are not invited to partake in the polling process because they might not have the knowledge and insight that the professionals do to rank certain teams.
But if it were up to me, and I was allowed to be apart of the polling process...
GOPHERS WOULD BE #1!