Hi Dani,
Very good points. Actually when I first developed modETP that was one of the problems. One of my work around was to make a "Edit This Item" link. So say a press release page template will display different news. Even though its a single page, content are taken from different pages. Its not that bad, so the template page did become one of the UI for entering content. I guess I took some lessons on that.
ETP style of presenting UI to the user may be better with other organization. Particularly in smaller sites and each page has one content.