because Juan had a great season when he was an actual winger, not a wingback. if hes as good or better or worse than other top wingers is another discussion, but Salah isnt suddenly better because he had 12 goals in a all attacking Roma team playing close to the CF mostly
i dont think he is. his finishing is very poor (Cuadrados too) but Juan is better at creating chances. but they both arent WC offensive performers as wingers, Cuadrado is as WB though