... I still only see the FIRST instance of the END block doing anything ...

From this I think you've already gotten the point, but anyway... There is only one instance of any given  END block in a program:

c:\@Work\Perl\monks>perl -wMstrict -le
"for my $str (qw(one two three)) {
   print qq{in for loop: '$str'};
   END { print 'END block ONE';   }
   END { print 'END block TWO';   }
   END { print 'END block THREE'; }
   }
"
in for loop: 'one'
in for loop: 'two'
in for loop: 'three'
END block THREE
END block TWO
END block ONE
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