XForms: Question about tax form example

All,

I notice that this example, linked from here:

   http://www.mozilla.org/projects/xforms/
   http://www.mozilla.org/projects/xforms/sample1.xhtml

uses <xforms:label> all over the place outside XForms controls. It is my 
understanding that <xforms:label> must be used within a control element, 
see:

   http://www.w3.org/TR/xforms/slice8.html#ui-commonelems-label

"This required element labels the containing form control with a 
descriptive label"

So instead of:

<xf:label>Your first name and initial</xf:label>
<br/>
<xf:input ref="/f1040ez/section01/fname"/>

Use:

<xf:input ref="/f1040ez/section01/fname">
   <xf:label>Your first name and initial</xf:label>
</xf:input>

If what I am saying is right, using <xforms:label> outside form controls 
shouldn't even work.

Also, in the same example, I notice that the same "id" attributes are 
used on many elements. I believe "id" attributes in XHTML must be 
unique. Instead, the example should use class attributes for the purpose 
of styling.

Please let me know if I should file bugs, but I think it's best if the 
Mozilla XForms project doesn't start with spreading incorrect XForms 
examples.

-Erik