There's no need to downplay his faith. Super unlikely you'd do it with any other one.
How does that downplay his faith?
As someone without faith, if it's any help, I read it as 'Pat Gelsinger is a Christian, he is also a decent human being. These things are not connected'. Which seems pretty fair. (Evidence would suggest that not all decent human beings are Christian, just as not all Christians are decent human beings).
I took the 'morals from a book' comment as a statement of his inate decency, as it was ingrained rather than affected, or learnt.
Thing is with faith, it's deeply personal, so, like musical tastes, it's best not worrying what other people think; that way only leads to trouble.