Honestly, I don’t think that’s a respectable position in this context. In fact, I consider that straight-up academically irresponsible. You are specifically presenting yourself to an online forum of Catholics as a supposed ‘expert’ on the history of their own Church, and yet you’re refusing to disclose what your biases on the topic may be (by refusing to disclose whether you are Catholic yourself, or whether you are, for all we know, vehemently opposed to Catholicism, and interested in trying to subtly plant seeds that will steer us away from it, too).
You may sincerely try to avoid biases filtering into your work – but you’re a fallible human, as are we all. We all have biases – and it’s worse if we don’t know what our own biases are, or try to prevent others from considering what our own biases may be.
And the areas of subject matter you’ve chosen to focus on, the angles from which you’ve examined it, the evidence you personally find persuasive or worth mentioning vs dismissible or not worth mentioning, and especially what your blind spots may be… are all relevant factors that you prevent us from taking into account, when you try to present yourself as if you’re a robotically impartial and all-seeing ‘authority’ on the matter, without a human viewpoint and human limitations.
I don’t mind whether you’re an atheist or a Hindu or a Protestant or a ‘spiritual but non-religious’ or a Catholic. But I do think that intentionally hiding that information from us, while trying to insert your private (though still professional, but professionals do disagree on things, so private) interpretation of history into our minds, prevents us from knowing your potential biases, prevents us from being able to piece together a more full ‘neutral’ picture that includes both what you say you see, and the angle you see it from.