I agree, but sometimes God presents us with miracles just because he loves us, and not because we "require" it. Suppose just for a moment, that Christ did leave us the shroud and it is 100% authentic. Do you think he would have done so out of pure whimsy or without some higher intent?
Even St. Thomas the Apostle required physical proof of Christ's resurrection, and Christ did not turn him away, but invited him to probe the wounds. Indeed Christ blessed those who, "have not seen, but still believe," but he didn't exactly run Thomas out of town, either.
I don't need the shroud at all for my faith, but it remains an intriguing anomaly, and if it has drawn but one skeptic out of himself and turned him to God saving his soul, it is indeed, imbued with a touch of the miraculous.
What the heck is so anomalous about one of the more technically-minded disciples recording an image of the big event?
The Shroud of Turin could be this technically-minded Italian city's answer to The Holy Birthplace of Obama, in Mombasa. In fact, according to the testimony of officials in Hawaii, Obama may be an example of saintly bi-location. At least no one in Turin makes THAT claim.