I don't think anyone should question the offensive talent at UW this year. They're pretty stacked across the board on that side. I think the biggest weakness UW has is the lack of depth on their defense in comparison to other CFP contenders. That's why, IMO, UW struggled defensively during that middle stretch of the season. They were missing some starters and they didn't have quality players to fill in.
But it ultimately didn't matter, UW found a way to win those games, even if they ended up being closer than people would have thought. And they ended up getting relatively healthy for their stretch run and found a way to keep winning. They weathered the storm and are now in a position to play for a title.