Concering XHTML 2.0's blockquote and blockcode

While reading XHTML 2.0's sixth working draft, I found myself wondering if 
the defference between the <code> and <blockcode> elements and the <quote> 
and <blockquote> elements was really relevant. There's no structural or 
semantic change whatsoever but the fact that <blockquote> and <blockcode> 
belong to the structure module, while <quote> and <code> are part of the 
text module. I suggest that, as structure elements of XHTML 2.0, 
<blockquote> and <blockcode> should be treated as XHTML 2.0's sections (as 
the <section> element). Thus, one could write --
 <blockquote>
 <h>Prologue</h>
 <p>...</p>
</blockquote>
 -- without the need of enclosing the <h> and <p> elements with a new 
<section>.
 Thanks,
 - Bruno Azem