This is generally correct and Benson was no doubt an asset in his later years, but I’m pretty confident the only reason the team didn’t relocate to San Antonio after Katrina was because Paul Tagliabue wouldn’t allow it. The biography on Benson released a couple of years ago and (if I recall correctly) a member on this site with knowledge of how the discussions unfolded went into a bit of detail about this.
Mrs Benson seems to be more unconditionally committed to the city. But no doubt we owe a debt of gratitude to Tom for making us winners.