Even with disastrous Koenning and Fairchild records included for Wyoming and CSU, we get:
WYO 50-71 0.413
CSU 50-73 0.407
Still, better records than four of the five BE stragglers mentioned in the OP and against MUCH BETTER conference competition.
I don't know where McElwain will have the Rams in a couple of years, but Christensen certainly has the Pokes program in a better position than anytime in the last ten years.