And young Master Darwin did a great deal of interpreting, assigning of causes to the effects he observed, viewing the world through the lens his world had ground.
Perhaps...however, it is, at best, a moot point, as the question at hand is not the effect of Darwin's beliefs upon his worldview, but the effect (or lack thereof) of his beliefs upon the scientific validity of his discoveries.
Atheists do not float around willy-nilly, unaffected by gravity, simply because Sir Isaac Newton believed in God and they don't.
Nay not so, the article’s point was as I said. If you wish to raise some connected question, that’s something else again.
However the validity of Darwinism IS NOT the point of the article, Darwin’s belief and expression of that belief or disbelief in his writing is.