Ok, I found a way to alter this in the code. I'd love to see someone make the event URL a variable or something.
You can see below where I commented out the original code and replaced it with my hardcoded URL (/calendar) in amr-ical-events-list.php
function amr_derive_summary (&$e) {
/* If there is a event url, use that as href, else use icsurl, use description as title */
// $e['SUMMARY'] = htmlentities(amr_just_flatten_array ($e['SUMMARY'] ));
// return('<a href="'
// .($e['URL']?(amr_just_flatten_array($e['URL'])):"").'" title="'
// .($e['DESCRIPTION']?(str_replace( '\n', ' ', (htmlentities(amr_just_flatten_array($e['DESCRIPTION']))))):"").'">'
// .$e['SUMMARY']
// .'</a>');
$e['SUMMARY'] = htmlentities(amr_just_flatten_array ($e['SUMMARY'] ));
return('<a href="/calendar" title="'
.($e['DESCRIPTION']?(str_replace( '\n', ' ', (htmlentities(amr_just_flatten_array($e['DESCRIPTION']))))):"").'">'
.$e['SUMMARY']
.'</a>');
}