Why WCAG 2.0 doesn’t comply with its own line length criterion of 1.4.8?

WCAG 2.0 Success Criterion 1.4.8 clearly specifies that to achieve AAA conformance level, Reading content in a single line should not exceed 80 characters for non-CJK (Chinese Japanese & Korean) characters.

But the paragraphs which wrote the same stuff has more than 111 characters in a single line including space. (Space is also a character: ASCII code 32) Even if we omit the space, The character count is way over 80. So what is the deal here? Am I missing something?

Is there any mention of the line length requirements for AA or A?