Come on, you need to stop this nonsensical over-generalization.
Sure, Oregon State and Cal are just "teams with a lot less talent".
Oregon State was a road game to a 100+ year in-state rival. Anything can happen. As for Cal, they were actually receiving votes in both the AP and Coaches polls before they started playing games. Let's not pretend that they were "less talented", they just lost 3 games to open the season.
And it cannot be overlooked that the Pac 12 had the shortest season in P5 and were devastated by Covid limitations, often setting up "replacement" games on short notice with almost no time to game-prep for a particular opponent.
NONE of that is an excuse, it is just an accurate contextualization of why TWO single-digit road losses, one against an in-state rival and one against a team that was nearly ranked in the pre-season, should not be transformed into some sort of huge generalization that Oregon "lost" games to "teams with a lot less talent".