This page demonstrates the problem the plugin attempts to resolve. If you scroll down now, before activating the plugin, the two implemented Google Map Embeds will prevent you from scrolling any further (at least on desktop devices, Google recently implemented a fix for mobile devices).
To prevent those unintended interruptions, click the following link:
Activate Scroll Swipe Protection
To correctly display the problem, the blocking element must actually be at the bottom of the page or even initially out of view, so the following paragraphs are simply here to ensure exactly that.
This is the part of the web page, you cannot normally reach when your scrolling action gets transferred to the iframe instead of staying on the page you were initially scrolling.