box-sizing: Invalid Statements in Documentation

At https://developer.mozilla.org/En/CSS/Box-sizing it says:

"It is possible to use this property to emulate the behavior of browsers 
that do not correctly support the CSS box model specification."

This is quite a pejorative statement and it should be corrected.

Actually, inventing content-width as the determinate value for the width 
property was a bad change in mind of the W3C. In fact, it was the border-box 
layout that determined the calculation of the width property right from the 
beginning in CSS1. CSS3 now just corrects a CSS2 design flaw.

Many designers will welcome the return of the border-box layout. Now finally 
it is possible again to assign both, a padding, a border AND a width of 100% 
to correctly display full width backgrounds without a need to perform try & 
error kind of width calculations.

Axel Dahmen
www.axeldahmen.de