Cherry-picking the article: > .... and to use plain language and a strong design to aid people with cognitive or intellectual disabilities.... How is this me

Cherry-picking the article: > .... and to use plain language and a strong design to aid people with cognitive or intellectual disabilities.... How is this measured? This is the most disconcerting part of the article to me. Taking it to an extreme, is Amazon liable when someone with cognitive impairments accidentally buys $10,000 of stuff with one-click shopping for failure to understand the concept? Is ebay liable for inadequately explaining the concept of a bid at the level of someone with a 70 IQ?