Shaqiri, Bojan, Podolski, Arnautovic, Ashley Cole, Micah Richards etc disapprove of that simplistic statement - all of them flopped badly in the Serie A. Cuadrado and Salah have even been tearing up English sides like City and Totteham in the CL after going (back) to the Serie A.
Alexis Sanchez, Cuadrado and Lamela are the three big money wingers who broke through in the Serie A and lately went to the Premier League. Alexis is excellent, Lamela seems to be doing well now and Cuadrado had a poor six month spell.
Statistics aren't really supporting your statement.