Would this not be compensated in the end-to-end TCP checksumming? And couldn't the traffic to bit-squatting domains be accounted for by the myriad bots that constantly scan the web on port 80?
The likelihood of a bit-flip is very uncommon. Even taking into account the volume of computers out there, the likelihood of a bit-flip at the exact spot (in the domain name) and moment of a DNS lookup (before the checksum is calculated) is astronomically uncommon. This article is garbage.