Plus a bowl game against them in Hawaii for another loss (making it 13-9 overall on the island vs Hawaii).
3 of those losses were before Lavelle was hired as head coach - so pretty ancient history...
A couple obvious disasters. And a perfect record against them in Provo. But overall winning any road games is more difficult...and Hawaii averaged 9+ wins in seasons that they beat BYU on the island...another difficult thing to overcome.