Thanks for the report.
What I'll do is actually rename it to index.html.moved .. as the index.html may not be the one DA added.. the user may have his own.. we wouldn't want to delete the from him if he put in a lot of work
I bought a website/domain from a guy using cpanel ...
After I convert the cpanel tarball to DirectAdmin and restore it, every 12 hours give/take, the index.html is renamed again to index.html.moved ... effectively breaking all the sites, until I can go back and rename them to index.html again.