But Dickerson did it in 16 games - Barkley would have needed a 17th.
Hell, if we want to be accurate, Barkley achieved less yards in 16 games than all of the following:
Adrian Peterson (2012), 2,097
Jamal Lewis (2003), 2,066
Barry Sanders (1997), 2,053
Derrick Henry (2020), 2,027
Terrell Davis (1998), 2,008
Chris Johnson (2009), 2,006
And even then, on a per game basis, OJ Simpson in '73 still beats all of them, with 2,003 in just 14 games.
Barkley needed 2 more games to get 2 more yards than OJ - those aren't comparable achievements.