Navigation in Events+ not working: site_url vs. home_url

According to the WordPress Codex: Giving WordPress Its Own Directory I have all my files in a subdirectory while the “frontend” of the site is accessible by the root domain. After I did this, I found that the Next/Previous links in Events+ aren’t working anymore as they still point to the wrong URL (actually to the subdirectory files and not the root). The problem seems that Events+ uses the get_site_url() function, while for navigation it would be better to use home_url(). So I changed this in the core file of events+ and this works perfectly.

So, would it be possible to change this in a future version of events+ so I won’t loose my changes when the plugin is updated or are there any problems you see when switching from site_url() to home_url() for the navigation?