Even though they ran out of gas and lost the energy, efficiency and attitude Smithville brought right at very heavily favored St. Mary's last November was without a doubt the most impressive performance (especially for circa 2.5 quarters) I've seen in this area since I can remember.
Here is another nugget that supports what you say here: NUMBERS. Smithville's enrollment is smaller than Kearney and much so than Platte County but man do they ever have lots and lots of kids out for FB! Other key, as I pointed out before both Kearney games, is how every single player is working very hard physically. They have the look of a number of elite programs in MO history.
St. Mary's had Homey the Clown coaching them. That was like Pop Warner stuff over there. They won because they had the Jamal's and Jerome's. Period. Not even the great and powerful WIzard of Ambrosian could stop it.