Fully agree, there is no reason for any other content to be modified but…
My standard export with short code replacement deactivated:
<title><![CDATA[Home]]></title>
<link>https://xxxxx/home/</link>
<pubDate>Mon, 26 Dec 2016 15:01:04 +0000</pubDate>
The same page with the shortcode replacement activated:
<title><![CDATA[Home]]></title>
<link>https://xxxxx/steel-structures-for-waste-incinerator-plant-in-brno/</link>
<pubDate>Mon, 17 Jul 2017 07:00:09 +0000</pubDate>