Well so this is kinda my point. He faces a high volume of shots, a high volume of crosses. Brentford had the second most shots against and third most crosses against last year. I am unsurprised that he would therefore lead those statistics.
"Meh" might have been glib, but he led the league in save% even while Brentford were middle of the pack with regards to xGA vs. GA. Their xGA per shot against was low. That indicates to me that he was making a high quantity of saves on low-medium level chances.