I can kinda see where you come from to get that opinion. In soap operas, you see the viewpoints of many different characters, it is arguable that there's no heroes, or that everyone is a villain to some degree, the focus is on the personal interaction of an ensemble cast as opposed to a single protagonist, and they have a focus on plot twists and dramatic revelations.
The thing is, that also goes for a lot of contemporary drama. I think there's more to codifying a soap opera than just those things... what really makes a soap opera also includes certain kinds of cinematography (lots of slightly-off-angled facial close-ups with blurry backgrounds), overacting/overwrought situations, cliche plot twists (AMNESIA!), possibly even distinctive audio cues.
Once again this week we were treated to the moments before and immediately after a battle without showing the battle. Color me irritated. I'd have thought they would have gotten more of a budget by now.