FrogReaver
The most respectful and polite poster ever
I mean if the usefulness is to bring out other ways to play RPG's then I'm sure it worked well.As defined in those essays Simulationism or Right To Dream is simply an aesthetic preference rooted most strongly in exploration rather than protagonism/theme (Narrativism or Story Now) or skilled play (Gamism or Step On Up). I personally prefer the epitaphs to the labels here. It's also not perfect. These creative agendas are not the only possible ones. Still it's better than what existed before where everyone basically assumed you could only design and play RPGs in pretty much one way.
But IMO It's a pretty poor definition for comparative/analysis purposes.