I'm not sure how you concluded that there are only two features listed. Going back through the page I see:

* calendar-based navigation (Agenda) * gantt/timeline display * image collages * non-linear organization * command line * dedicated tasks tab * global search * customizable colors, fonts, icons

I'm not saying that Clover is incredible or that your "proprietary cloud silo" paradigm is incorrect, but saying the app mentions literally nothing else is a bit of a stretch.