Most RPG players are D&D players, and thus are not playing a "rules lite" game.
I don't know if we can say that most of those players don't like rules lite games in reality, since most have probably never encountered or played in one.
I don't think this is a good example of a lite game. It's still not that lite, and it's not intended by its designers to be a complete game.
I'm sure it's playable, but I think its replayability is probably less than a system that is genuinely light in its rules and also flexible in its fiction -
Story Bones would be one example.