Aliska makes a good point. While I have not "extensive research" on this, I tend to believe the majority of it to be true.
But just like the Medjugorge chasers, if this were somehow proven NOT to be true or of divine origin, it shouldn't shake our Faith. One is private revelation, not binding on Catholics, but piously believed. The other is public revelation. Our Lady of Guadalupe, I believe, seems to fit well with the Kingship of Christ and Our Lady of Fatima, in my opinion.
We shouldn't be surprised that other Catholics, all orthodox, don't hold this worldview. But they should read Pius XI encyclicals on Christ's Kingship and on the Feast of the Kingship of Christ, as well as Leo XIII and others.