I though you are referring to _my_ Home Page and was insulted. Grrr.
Oh, yes. The Home Page of a Moodle site, when the URL is the domain name? It is always the Site in Moodle jargon. The Dashboard has a /my suffix. (Am I mistaken?)
All the Moodle sites I manage have defaulthomepage = site. I find dashboard is for those who don't know where they come from, according to the motto here on moodle.org "everybody is sent here by Google". In contrast the site is a common entry page with Site news, Tip of the Week, urgent calls, etc.