This would be the same organization that runs the Catholic transmission towers on the hill that transmits, to four cardinal directions, microwave so strong that it interferres with telephones and VCRs.
No, I don't think it's a splinter organization.
There have been only about a dozen Marian apparitions over the past 500 years which have been investigated and given ecclesial approval, eight of them in the 20th century:
Fatima (Portugal), Beauraing (Belgium), Banneux (Belgium), Akita (Japan), Syracuse (Italy), Zeitoun (Egypt), Manila (Philippines), and Betania (Venezuela).
There have been hundreds reported, but, as I say, only 8 investigated and approved.
So I'm wondering whether you (1) live in, for instance, Venezuela, or (2) some local organization is giving support to a dubious phenomenon, which makes me go "Hmmm..."
Or maybe you're talking about Bayside or Conyers, or one of the other "manifestations" which has been definitely repudiated by the church as inauthentic -- but which nevertheless continue to attract the disobedient, the dissenters, and the dingbats.