Unless I read more about what Flew actually thought, and the path of reasoning that led him to his current belief in God (of some sort), I can only take his words at face value*. And your idea goes along with what is stated in the article.
Basically there are two kinds of people {those who divide people into two kinds, and those who don't}...
No, really - these two kinds:
1. Those who have a certain set of beliefs, want to continue believing, and therefore only allow information which supports these beliefs into the purview of their mind's acceptance.
2. Those who want to know that the Truth with a capital T is, and follow the search wherever it leads, not thinking that they know the destination before they arrive.
Unfortunately, group (1) is very numerous. But group (2) is the only one to be in to achieve the actual goal of human life.
*And being the uneducated fool that I am, I probably wouldn't understand his writings even if I tried.