Yes, sure, but if someone has already done some summary ranking for you, and that ranking is widely accepted as being pretty close, why re-do the work?
Are the rankings perfect, absolutely not, there is absolutely no correct algorithm, because everyone has different criteria on what is important. But I’m not going to ever suggest somebody start with Alabama and work to Xavier and collect that information and come up with an algorithm that is perfect for their own personal criteria. Use the ranking for what it was intended to give you one data point.