Nonsense. The area from which they took the sample for radiocarbon dating WAS in a rewoven section.....and it’s quite obvious when viewed microscopically.
This whole “it was created in the Middle Ages” junk has been shot down completely.
Technically, the only thing that has been shot down is the credibility of the 1988 Carbon 14 tests, which returned inconsistent test results of 1260 AD to 1390 AD for dates when the Linen in the Shroud was grown.
It has put that particular question of "when was the Shroud created?" back to "we don't know," because the C-14 test sample has been shown to not be representative of what they intended to test, the Shroud of Turin.