If it shows you that you have everything, then the numbers may just be a bug. I've coded the gallery a fairly long time ago and I haven't stress tested it enough for different event accusation scenarios. Someone else reported something similar so I'll try to have a look in the next update.
The whole reason why I set up the gallery on the phone was because I already had event tracking in place on the divination app so I could show the requirements and the picture in one place. Changing it over to something else is definitely too much work and would probably make it much harder to find scene requirements.