All cables have some probabilistic failure of corruption, it isn't binary. It's the same as what going from 5 9s in your application to 7 9s, which involves a huge cost with distributed databases multiple data centers etc. etc... For most people it's a waste, but if you really value not having the occasional white speck, it could be worth a better cable, which may cost a lot more to recover design costs of making a cable very few will want to buy.