Why so ? I would never question or even mention anyone's faith, especially on a politics forum.
I'm actually Center Left; economically Right (on a share trading forum, remember) but socially Left (support systems for the disadvantaged etc). However, in Trump speak, anyone not an acolyte is simply tagged as LWNJ / Hard Left.
To Bjorling, his crescendo at 4:35 is, as written, B4. Whilst some modern tenors and gospel singers push to C5 to show off, I'm sure Bjorling could easily have gone higher.