The Pope has absolutely no bearing on the sanctity of Padre Pio. Do you really think that teh Pope would reject his canonization !! I knew about Pope John's suspicions, but so what. Are you claiming something more for John than you do for any other person ? Why ? You don't accept any special Papal powers, isn't that arguing from ambiguous reference.
Here is the book :
Padre Pio Under Investigation
The Secret Vatican Files
ISBN: 9781586174057
Author: Francesco Castelli
The religious authorities of Jesus time thought Him a fraud too. What is your criterion for who has the goods when it comes to spiritual matters. Your argument is to me Arguing from Ambiguous Reference, the Pope counts when he agrees with you and doesn't when he doesn't agree with you.