Hi Reno,
The plugin does not use React, so that is why I am only guessing why the other module thinks it has the polyfill enabled. I am guessing, that either some sort of a dependency causing the issue, or the app false positively thinks the module is queued.
Without debugging this I am not able to tell what it is. I looked through all the scripts, but the only one I could find traces of similar code to babel polyfill is the external scrollbar script.