I knew someone would bring them up. They no doubt have often had guys over seeded when they were in the MAC (which they never wanted to be in), but that happens in every conference but the Big 10 and, to a lesser degree, the Big 12. That said, they got the seeds they deserved based on their results, and they always scheduled tough tournaments and non-conference duals. Big 10 fan boys just get butt hurt about seeds because they beat each other up all season (or at least they used to prior to the increase in the duck population), and it hurts their seeds. Mizzou is a perennial top 10 team. Anyone who thinks they actually regularly underperform realistic expectations (vs. inflated seeds) is an idiot.
Although I agree with most of your post, there are proven examples of Mizzou under performing badly compared to seed at NCAAS. Joey Lavalle as a SR comes to mind. There are others. Recently, in the last 4/5 years without looking it up, I don’t think it’s near as bad.