UPDATE: Nevermind, I got it all working again. I had to delete and read the htaccess file with my added string and all is working again.
So just to recap, Mark's earlier assessment was not entirely accurate. While you cannot have two "index" files in the root, you can in fact have an alternate file as your home/splash page. I was able to fix my site using the setup below in bold for anyone else who might need a non-joomla static landing page.
[s]Actually, as I mentioned, I was able to get things working. index.html is a static page and index.php is the site index. Mark was correct that even though all other aspects of my site worked, EasySocial did not while there were two "index" files. Thus I renamed index.html to home.html and added the DirectoryIndex home.html index.php splash.html index.html site-down.php string to my htaccess file. Originally this did not seem to work as noted in my second post, however after trying it again and refreshing the entire site, everything was working with :[/s]
home.html
index.php
htaccess with DirectoryIndex home.html index.php splash.html index.html site-down.php added.
[s]Then Mark must have made some changes. I checked the htaccess file and the string was indeed missing, but now that I have added it back the parsererrors and unexpected token errors are back. I am just trying to find out if her changed anything other than the htaccess file.[/s]