Yeah this is getting blown out of proportion. Even if the numbers are correct, there may be many many reasons why the ''active subscriber'' number has fallen. Some have probably quit yes, but we don't know what the numbers actually represent even if they are real. Active subscriber may only include the US, only EU, it may or may not include players paying with tokens. And it would make sense that players coming back would start off buying a subscription, then acquiring the required gold before the subscription time runs out.
In the end however, the evidence does not exist for the community to examine, and the only witness does not carry the trust for us to take the words at face value.