Just look at the output of some other top wingers in the league.
Well let's run through them.
Doku - 3 goals 9 assists
Grealish - 3 goals 1 assist
Martinelli - 6 goals 4 assists
Trossard - 12 goals 1 assist
Diaz - 8 goals 5 assists
Gakpo - 8 goals 5 assists
Diaby - 6 goals 8 assists
Son - 17 goals 10 assists
Mudryk - 5 goals 2 assists
Barnes - 5 goals 3 assists
Gordon - 11 goals 10 assists
Rashford - 7 goals 2 assists
Garnacho - 7 goals 4 assists
Anthony - 1 goal 1 assist
Kulusevski - 8 goals 3 assists
Even someone like Kudus who everyone is harping on about the next Rivaldo or something, 8 goals 6 assists. Neto is one we all love to watch because of how exciting he is, but go see what his goals/assists is like.
It's taken someone like Saka 4-5 years and half a dozen penalties to finally reach good numbers, it's taken Bowen the same amount of time but without the pens.
Son is the only 1 on that list that has been doing it season in season out.
Very very few wingers in world football will get 20+ goals or 30+ goals/assists a season, season in season out. Ronaldinho rarely did it, Figo rarely did it, Robben & Ribery never did it, Ljungberg never did it, Cameronesi never did it, Di Maria never did it (certainly not for Madrid or Utd anyway) Giggs never did it. The list goes on.