Honestly as an outside observer it seemed more to me like he just checked of the 'requisite god talk' all American speeches seem to have and put it into it's own little section. Maybe trying to balance out the sections that focus on the things that the traditional conservative interpretation of the christian god is opposed to (racial, gender, sex, trans equality, being guided by science).
The 'God gave me this challenge to overcome to solve these problems and moral quandries' version of faith rather than the 'God guides so I'm right in what I do' you see in fundementalists. Which as an atheist I find hearing less anxiety-inducing since it tends to allow people with that view to do things like decide gay marriage is totally okay (which Joe Biden has done).
And definitely a welcome change in tone from the horrible 'I talk about God now right guys? That's what I'm meant to do? God? Great guy, thinks I'm great too I hear' stuff from Donald Trump xD
As a bit of a tangent, as I understand it Catholic has become more of an identity than a strict dogma for some, there are '
Atheist Catholics' who still identify themselves as having had a catholic upbringing and so 'being catholic' but not actually following the tenants or faith anymore (which makes them bad catholics, but still catholics).