Please quote those posters with extensive track records. Anybody in the know can tell you that right now it appears the ride has slipped to October, but could be pushed back as far as December. And what's fun is seeing the information about DOSH, which I already knew, and you still wanting to throw shade in my direction.
All of this is correct. It is one of the reasons that DHS' version is easier to get up and running.
This is a huge attraction with a massive number of items to be maintained, cleaned, monitored, etc. Once the ride is cleared via a 72 hour operation and the DOSH inspection, the ride will be transitioned to Operations. Every single detail to do with the ride must be learned, and trained, by a vast number of cast members within extremely varied fields. Just to give you an idea, this includes animatronic maintenance, sound system care, ride vehicle maintenance, security system checks, A/C schematic training, custodial routines, etc, etc. The ninety days is not for going over how to get a guest into a ride vehicle and then unload them at the end... it's for keeping the ride in show condition every single day for the next decade. And it's not a simple thing to do.