i think majority wouldn't dare to show their personal take on eternal-life in public, being afraid to receive bad comments. So, kudo's to him to do so here and there, in the face of being bullied. personally, i think how he does it is appropriate and not over the top.

Regarding how serious he's about it; He actually quoted Galatians 5:22-23, at 11:20 with a passion. i.m.o., he isn't "being religious" but he makes it practical.