They were led to the wrong places by V2. Around the 2000, 40 years after V2, converts started using these stepping stones to come back to Truth. Don't mix up the first 40 years with the last 20 years.
Prior to V2, the "Digital Missionaries" were Catholic clergy, Archbishop Sheen, Fr. Payton, Fr. Coughlin to name a few off the top of my head. These are Commissioned to preach and teach, lay people are not, which is why lay people are not allowed to, except in the NO - where there is only the slightest of differences between priests and lay people, at some point in the NO there will be no difference at all, which only means there will be no priests at all.
The Catholic Church commissions the "Digital Missionaries" above to bring souls into the true Church, precisely in order to avoid any "stepping stones" because there is a danger there, a mortal danger, one that most succuмb to and one way or another, end up not seeking the truth - thanks to "stepping stones".
While I agree that the only graces one might correspond to in the NO church is the graces to leave it for the True Church, most of the time, as reality proves, that is not what happens.