There is context here, of course. There always is. Missouri was grounded in Lubbock and didn't have a normal walkthrough experience or pregame routine. That can affect you, especially when you're one of the youngest teams in the country (again). Plus, Arizona played incredibly well and presented specific, size-related matchup disadvantages for the Tigers. And on average, Arizona is actually a pretty bad 3-point shooting team ... but was 27% better than Missouri in that regard last night (41% to 14%). So there was some bad luck to go with the epic bad mojo.
That said...
Missouri has played four Pomeroy top-100 teams in 2015-16 so far.