daff-php broken diff

gistfile1.php

<?php

require_once 'vendor/autoload.php';

$localTable = [
    ['col1', 'col2', 'col3', 'col4', 'col5'],
    [0, 0, 0, 0, 0]
];

$remoteTable = [
    ['col1', 'col2', 'col3', 'col4', 'col5'],
    ['xxx', 0, 0, 0, 0]
];

$localTableView  = new \coopy_PhpTableView($localTable);
$remoteTableView = new \coopy_PhpTableView($remoteTable);

$compareView = \coopy_Coopy::compareTables($localTableView, $remoteTableView);

// compute aligment
$alignment = $compareView->align();

// produce the diff
$tableDiffData = [];
$tableDiffView = new \coopy_PhpTableView($tableDiffData);

$flags = new \coopy_CompareFlags();
$flags->always_show_order = true;
$flags->never_show_order = false;

$highlighter = new \coopy_TableDiff($alignment, $flags);
$highlighter->hilite($tableDiffView);

print_r($tableDiffView->getData());