The society put this quote in the magazine for a reason, the article had to be suggested and then approved by a committee. There has been so much old literature resurrected that exposes the organization that they have to find a out for the willful deception. I certainly don't buy into the 'but we really believed it' nonsense, there is too much evidence to suggest otherwise.
Here is where the Society will get hurt on this issue: They utterly refuse to accept constructive and critical review of their works by professionals, and by rank and file JWs, and former JWs who can show them the serious errors the Society still promotes. Thier stubborn refusal of, and willing blind eye to, information that is critical and corrective of their published material is a form of lying by omission. It is no different from a political, business, or military leader who tells subbordinates to go ahead with some conduct, but just don't tell the leader about it ... so that the leader has plausible deniability.
They are trying to preserve what little credibility they have so that a the very least, they could say they 'meant well'. Unfortunately, they still insist on a high level of control over the lives of the members to the point that it shatters families, causes all sorts of psychological harm, and steal years of life from each individual who buys into it. Their willful blindness is dishonest and unethical; their self-serving interpretation of the scriptures make them false prophets and charlatans.