For the logic gates in general to be truly useful, some other forms of triggers would be beneficial - other than the coasters themselves triggers from people walking past a section of path or an entertainer coming nearby etc would allow far more possibilities.
Example:
Entertainer Pirate AND guests on path = effect
Coaster passing AND People on pah = water splash
etc.
Doesn't need to be ridiculously complex, a simple and gate would be great, not necessary, but great
the sequencers though. oh boy I really feel that could lead to some amazing effects without all the trigger timing issues.