Not sure what you mean by little to offer. Its meant to ease the setup and maintenance of a web server. It provides multiple options for wordpress and any other php/html based application. It does everything it would be expected to. Its not a total, all in one, application. Just a management interface. Similar to cpanel. It's still up to the user to implement proper security and performance tweaks.
You could use trellis in addition to EE. Modify EE to build trellis based sites. Trellis is for testing and small sites, there is way to much overhead for large production sites. Plus it would require a dedicated server. You can not virtualize on most VPS's.