An individual trying to access a page would find that the content that was presented to them in either speech or Braille was incomprehensible to them. Lets assume that this person is not a liguist and knows only two or maybe three languages. If they hit a page that comes out in Braille in a form they cannot make sense of it, they could try one or two languages that they were familiar with and see if the page was comprehensible in those languages. If not then, like all of us, they would probably give up on the page. Thus if it were in a language they could understand, it would be accessible but take extra effort to find out.
Next lets look at the Embedded foreign text problem.
In this situation, a similar problem occurs for both sighted individuals and individuals using Braille or speech. The user suddenly encounters some text that they do not understand. The worse case is that the user, just like every individual without a disability who is also not a linguist, will not know what the foreign quotation means unless it is translated someplace in the text. In either case, it did not appear as if the individual with a disability was at anymore of a significant disadvantage in accessing the information than the majority of the people who are not multi-lingual. Since it does provide severe usability problem, however, it was rated as a priority two.