Another important benefit of an offensive minded HC when you have an elite QB is stability. If Joe Brady is great this season, he will be gone and Josh will have his 5th OC in his career.
I know Tom Brady is the GOAT with Belichick a defensive HC. Belichick is the last defensive HC to even make a Super Bowl, and that was the 2018 Season. More importantly Tom Brady had 2 OCs in 18 years with Patriots, complete stability with QB and OC.