This is a very unusual year. Just looking at the Sagarin predictor, Stanford this season would be a clear contender to win a national championship. Baylor, Notre Dame, and UConn have scores that indicate they would all individually be clear national championship favorities in most years.
Last year was the deepest field at the top by far. There were 6 teams with a score equivalent or better than Stanford's this season. Texas A&M and Tennessee dropped down with graduation losses, but the other four came back really strong to form what I believe is the strongest final four ever at this point. There have been several final fours over the last decade where there are only two teams of Stanford's quality or better in the final four.