Well, i mean like a "come back later" type ticket.
Yeah I could see that. On a personal note, I don't generally mind when companies mess up, I run a business and it happens but how a company deals with their mistakes goes a long way and offering something like that would be a good gesture.
The problem with doing that I think would be that the grand opening is for AP only (I think?) so offering a return ticket would be a bit pointless. Some free merchandise or food and drink or a preloaded credit on a Tapu Tapu might be a better gesture.