NCAA tournament team last season. they were the preseason pick this season to win the Big West.
They looked like a more formidable opponent than top 25 St. Louis, did but I don't know if that was what they did or what BYU did differently.
LBSU was annihilated by UCLA in their opener (3-0 UCLA win where LBSU had 2 shots on goal) and then was statistically annihilated by top 25 ranked Santa Clara, even though it was closer on the scoreboard 2-1.
So if BYU was indeed a top 10 team, BYU would have won this one easily.