Since you just confirmed that Jesus IS a sign--- and then you added, "We Gentiles do not require a sign," you seem to be saying that Gentiles do not need Christ Incarnate. Well no...I'm saying we don't need to have Jesus physically standing in front of us for us to believe in him...We don't need to see Jesus perform miracles to know that Jesus performs miracles...The OT Jews required those things...We don't...We don't require relics or the 'shroud' to know that Jesus existed...
No, we don't need Jesus standing physically in front of us in order to believe in Him --- not do we have to believe in fragments of relics; although they may have genuine devotional significance, they generally have little to no forensic value.
However, evidence is not to be treated with indifference. Paying close attention to objective evidence is a big element in what is rightly called "justice." No one who is indifferent to evidence can be thought to be a just judge.
That's why evidence of miracles, for instance, is needed to verify miracles. The Church rightly takes what you could call a professionally conservative stance toward purported miracles. Medical verification, for instance, for reported cures, is not to be underestimated. And as for visions --- it's always necessary to rule out the possibility of fraud, delusion, deception, and honest mistakes.
As you know (if you've been reading his thread):
- The Catholic Church has never officially recognized the shroud as an official relic of Jesus Christ. The Church has long held that the Shroud is an aid to devout veneration, in bringing Our Crucified Lord graphically to our minds --- whether it is an authentic relic or something else.
- NO Private Revelation (which would include visions, locutions, the provenance of relics, etc.) is "de fide".
Even if a Private Revelation is deemed worth of credence---I repeat --- it is not an part of the Deposit of Faith or a source of new revelations of doctrines necessary for salvation.
All the Vatican recognition means is that
- There's no evidence that the purported visionaries, or whoever, were not credible witnesses, e.g. they were not known liars, drunk, delusional, drug-addled, paranoid-schizophrenic, threatened/blackmailed, paid off/profiteers, morons, etc.
- Nothing in the purported Private Revelation" contradicts Catholic Faith and Morals, e.g. the Vision didn't say 'Hi, I'm the Fourth Person of the Trinity," "Girls who wear Bloomers are going to Hell," "Marx was Right and Lenin is His Prophet", "Jesus hates the Catholic Church," "No dancing, no beer"; "Reduce your Carbon Footprint," "Adore Me, I am Aphrodite in a Nightie," or any such nonsense;
- To the extent that it upholds the traditional doctrine (e.g. Mary says, "Do whatever He tells you"), and it helps people to repent and believe the Good News, or inspires people to dedicate /rededicate themselves to Jesus Christ Our Lord, it's to be valued as an aid to devotion.
I hope you find this helpful.