Hopefully, the choice with Dr. Sigmund and the house siege will show them that their choices can really matter
The main reason they are ignoring the plot points is because they are so butthurt over how badly they are doing in the nuzlocke and they aren't learning the mechanics of the game which is literally what the first 2 gyms of the game are supposed to do. I keep posting the field effects of the next gym in the comments to show them how complex the mechanics are and that they need to learn them, and because they clearly aren't gonna find all of them even though some are in plain sight.