That has already been the case for a very long time, for both season and career stats.
The season has already evolved from 12 games to 14 to 16.
The bigger factor is that tinkering with rule changes to encourage the passing game and more points being scored has made career numbers meaningless. It has also resulted in longer careers for players.
- Example #1: Vinny Testaverde retired ranked #6 all-time in passing yards.
- Example #2: Kerry Collins retired ranked #9 all-time in passing yards.
- Example #3: Philip Rivers ranks #5 all-time in passing yards. He was a starter for 15 seasons, but ranked in the top-five in season passing yardage just five of those 15 years. If he typically was not a top-five yardage passer during his career, how does one justify him being top-five all time?
- Example #4: Eleven players have thrown for 50,000 yards; nine of them played all or most of their career in the last two decades, and seven were still playing as of 2019.
- Example #5: Steve Largent and James Lofton both retired as the career leader in receiving yards; neither are in the top-10 now.
- Example #6: Jim Brown was once considered to be the greatest football player of all time, with a career rushing total that would never be matched; that number is no longer even in the top-ten.