Its a good point but nobody thought Baltimore would win the Super Bowl 10 years ago until Flacco transformed into Tom Brady for a month. Likewise with the Eagles a couple years ago. (Not that those teams were going to be basement dwellers; but IIRC neither were top picks).
Anyhow I also figured he'd join an absolute contender like Green Bay or Tampa.
The Ravens had made the AFC championship game the season before they won the Super Bowl. And had posted a 12-4 season the year before that.
Entering their 2012 Super Bowl season, the Ravens were probably ranked as a top 3 or top 5 team in the NFL.
The Ravens seasons before and including their Super Bowl season:
2008 = 11-5, 2nd in division, lost AFC Championship game
2009 = 9-7, 2nd in division, lost AFC Divisional playoffs
2010 = 12-4, 2nd in division, lost AFC Divisional playoffs
2011 = 12-4, 1st in division, lost AFC Championship game
2012 = 10-6, 1st in division, won Super Bowl
Combined playoff record during those seasons was 5-4.
So they were clearly a more consistent and proven contender than Arizona is now.
Arizona in the last 5 years, for comparison, have gone:
2016 = 7-8-1
2017 = 8-8
2018 = 3-13
2019 = 5-11
2020 = 8-8
They aren't in the same situation as Baltimore was in a decade ago, when Baltimore had been a consistent playoff contender and double-digit win team for multiple seasons.
The Buffalo Bills, Las Angeles Rams, or Tennessee Titans would be teams more comparable to the Ravens of 10 years ago. The Bills, Rams, and Titans have been playoff-calibre and double-digit win calibre for 2-3 seasons now, and need that one guy to put them over the hump.