I think he thinks QB shouldn't win this year because there is not a clear dominant QB relative to the others.
With that said,
Tua is putting up 300 yards a game, 21 TD/8 INT, 70% completion (242 total) .
Which is 16 game rate of 4700 yds, 34 TD/13 (385 completions), which is almost identical to Bradys 2017 MVP year
Kirk cousins was also having amazing season. Stroud also has been putting up some fantastic numbers.
Dak/Mahomes/Purdy/Herbert all having good efficient seasons as well.
Josh McDaniels on the Raiders