I have a strong preference of cardinal over ordinal systems, but I won't say all ordinal systems are flawed. I rather like condorcet methods but I think their complexity is too much of a barrier. I've started to come around to Election Science's similar decision of pushing for Approval over STAR because of this and I will gladly argue how STAR is far less complex than IRV (STAR has a max of 2 rounds and IRV will almost always have significantly more. The only time it has two rounds is if there are strictly 3 candidates).