Even though his first game playing, he lost to San Diego State and then his first game starting—at home against Washington State—he completed a whopping 13 passes out of 23 attempts.
You can’t take Rising-as-he-was-against-USC-in-2022 and assume he would’ve had the same production as a 4th-year freshman in his first game ever on the road against a really good BYU team.
Utah ran into a buzzsaw in Provo that night. Just accept that BYU beat them solidly—as they did every other Pac 12 team they played that year.