Let me give you an example to illustrate my point.Its not a check down in the receiver is open as your stats indicate, that is just called throwing to the open man.
What if the defense is playing soft cover and always give you a free shot at the drop off? Always an easy throw, always short but gains a steady 6 yards.
What if you still try to get chunks on that defense? Harder throw, longer throws, but gains a less steady 8 yards.
A good passing game is about finding the perfect balance between safe and hard for the players you have.
Mahomes, Rodgers and Wilson last season had an AGG% of 11%. Meaning only one throw out of 10 was made to a receiver with a defender within one yard, which is similar to Mac Jones throws this week. Difference is, the top guys were throwing the ball ~8.5 yards deep on average, 2+ full yards deeper than Jones per target.
When you're bottom of the league in both AGG% and IAY(intended air yards), YES! Check down Charlie definitely applies.