The part that makes higher error correction even more pointless is that errors can only be tolerated well in certain parts of the QR code. If the position markers are damaged, a scanner likely won't even recognize that there is a QR code visible, which obviates any error correction. The article mentions this in the very last sentence/caveat.
It feels a bit like the error correction exists mainly so you can embed fancy logos in your QR code... Avoiding damage to some parts but not others seems unaligned with real world scenarios...
It feels a bit like the error correction exists mainly so you can embed fancy logos in your QR code... Avoiding damage to some parts but not others seems unaligned with real world scenarios...