Their alumni struggle to get into graduate school, especially in research mathematics. (I don't care about math ed. That's a different field). Because I know the former grad coordinator at BYU's math department, I am aware of the fact that in 2015, eight BYU-Idaho students applied for the *master's* program (not even a PhD program) at BYU. None were accepted. Other years have been similar to my observation.

I had a short stint at a state university that attracted graduate applicants from BYU-Idaho. There were zero BYU-Idaho applicants that were accepted in pure math. I believe two were accepted in statistics. One of these was a once-in-a-generation talent for BYU-Idaho. He was a kid who grew up in Sugar City and whose dad taught at BYU-Idaho. BYU-Idaho usually does not get kids like him in my observation.

I also know several current and former faculty members at BYU-Idaho math department. The department actively discourages research. That's sort of a big deal when trying to get into graduate school. I would argue that BYU-Idaho's math department actually provides a relatively WEAK undergrad education for math majors.