Again - I don't think anyone thinks Justin Fields or Russ Wilson are 2 of the best QB's to ever play the game. That.is.the.comparison. We are not comparing Kenny to Manning or Brady.Now your reply is to compare him to arguably the two best in the history of the game.
We are saying the act of getting with your receivers whether on or off the field is an act of leadership.
We are saying when a QB gets with his receivers whether on/off the field he can absolutely help with route running, timing, leverage, coverage identification, leverage, etc.