1. Contreras has above average pop time to 2B. A lot of the SB against him he hasn't even had a chance on and his framing still grades as one of the best in the MLB. He's 7th among MLB catchers in Fielding Run Value, 2nd in DRS, 2nd in Framing, and 2nd in Fangraphs catcher defense.
2. He currently has a 119 wRC+ and is 4th in the MLB in catcher fWAR despite being 9th in catcher PA.
3. Factoring in all these things, he's easily been a top 5 catcher in the MLB this season.