Both radical possitions are wrong in my opinion. I think this must be up to the individual. Our hierarchs are wise in not pronnouncing anything specific regarding the RC apparitions simply because it's not our business to do so.
It's also important to state that RC apparitions and visions is a very general term, RC visions difer a lot from one to another. I'm not an expert on this but we can make a comparisson between the apparition-icon of Our Lady of Guadalpe, revered by both Orthodox and Catholics in my country; and those of the Lourdes Virgin.
While the first one seems inocent, devoid of anything weird or opposed to the Orthodox faith, the second one looks very much like made up, meant to affirm a Latin dogma which has no sense in our tradition.
Now if we talk about visions, it's frankly unfair to call the RC vissions naturalist or evil or diabolical as some chauvinists say. We must remember that the spirituality of the Latins is much different from that of the East. They focus a lot on the crucifiction and the salvific mission of Christ who takes our sins and liberated us from them, more than the defeat of death and the resurrection, in our tradition.