The sweep of xsl:for-each instruction in the second example (http://marker.to/MrekZv) in "19.4.1 Examples showing the Effect of Operand Usage" (http://www.w3.org/TR/xslt-30/#operand-usage-examples) should be consuming.
According to http://www.w3.org/TR/xslt-30/#streamability-xsl-for-each, sweep of xsl:for-each for this case is widest sweep of the select expression "*/emp" (consuming) and the seqtor "<xsl:sequence select="."/>" (motionless), which is consuming.

Also it is not very clear from the step 9 that "striding and consuming" (currently: striding and motionless) is not allowed as a result of xsl:stream's seqtor.
It might be better if it links to streamability of xsl:stream under 18.1:
"The xsl:stream instruction is guaranteed-streamable if the contained sequence constructor is grounded".