Capital One Cup

So upon watching the new commercials I went online to check out the new Capital One Cup that has started this year. Pretty much, for those who don't know it is awarded to the best men's and women's team in college athletics. It gives points based on how colleges do in NCAA sports ( I believe mostly based on NCAA tournaments so bowls I guess for football). Anyways it ranks sports and how many points they get into tiers. I don't understand how lacrosse can be ranked a tier 2 sport and ice hockey is lower. Anyone have any numbers on the amount of D1 teams in these sports or as to why lacrosse would be higher up then ice hockey?