Not even close.
Just look at the playoffs.
The only QB on Josh's level is Mahomes and if he didn't have Reid and Chris Jones making clutch plays on D virtually every playoff game late to preserve victories, probably wouldn't have 3 SBs.
Mahomes is great no doubt about it. But I think Allen is his equal, he just doesn't get the help Mahomes has gotten from his D in the playoffs. If anything Allen gets shafted by both the D and ST.