College acceptance of credit for AP statistics will require a certain period of education for those who make such decisions. The decision-makers are not always the teachers of statistics. For example, in the Florida university system, a state-wide committee approves AP credit in principle, but individual campuses decide which are the acceptable courses. That decision was made at the University of Florida by an administrator, not by anyone in my department. Sometimes these decisions are made on a system-wide basis, as I think was the case in Wisconsin. Sometimes they are strictly local decisions.
I tell high school teachers to make sure their students ask for the credit for a "suitable" statistics course if they receive a 3 or greater on the exam, especially if the student is attending a college that has a history of giving AP credit. There is no good reaspon for such a college to deny such a request, but it may take some effort on the part of the student, or the student's teacher, during the initial stages.