I know you are asking about the WOTS, but I thought I'd answer because you may have a similar experience.
We were on the Serenade last week and they had a two-person band called "Island Vibz".
They would play island music, Reggae, etc. and throw in a few songs with steel drums. (all done using a synthesizer).
So while you got the feel of Caribbean music, it wasn't using real Pans. Still sounded ok though.