Did you not to see the picture of him celebrating the Novus Ordo and embracing JP2 or...?
There's pictures of St Padre Pio "looking like" he's celebrating the novus ordo too, except we know he was just facing the people. Maybe the photo shows the novus ordo, maybe it doesn't. It's not zero-doubt evidence. Secondly, what if he said the new mass at first, using the orthodox canon and later rejected it? You have no idea. You are in no position to judge anything.
JP2 was a popular person, a charismatic leader. Even +ABL was optimistic that JP2 would be conservative. Again, a photo without context proves nothing.
The evidence we DO have about Siri...
1. He was basically a prisoner in his house.
2. He was constantly watched and monitored.
3. He gave multiple interviews about horrible things going on and worried if God would forgive him.
Doesn't sound like a person 100% on board with the conciliar church.