Thats a HUGE exaggeration.
Seems like in 2021 there were several 5000 yard passers, and I know the top 10 QBs all had 4000+ yards (including Carr)
Mac Jones had like 3800 yards, 22 TDs and 13 ints.
That team had an ELITE defense, forced a TON of turnovers and had a monster running game (2K rushing)
Jones was a solid game manager, but FAR from looking like a "star"