Quoted from CadillacMusic:It's so easy to forget that back in the 90's, pinball makers REMOVED stuff before release. Now with Stern's updates, we're lucky if every intended feature is programmed in. Don't think they ever fixed some of those meaningless lamps.
So true, and if you take in consideration that at 1993 there was following releases from WMS:
1993-01 White Water
1993-04 Bram Stoker's Dracula
1993-08 Indiana Jones: The Pinball Adventure
1993-11 Star Trek: The Next Generation
1993-04 Twilight Zone
1993-09 Judge Dredd
It's pretty amazing how much stuff was removed from games after designing and prototype-phase.