It's nice that the kids managed to get so much out of a Milliways visit, their parents really have reason to be proud.
That said, it's very alarming that they did get a visit to Milliways at all. One that was so stacked against them getting any help from adults. It raises questions about the place ability to manipulate events or if it just waits the right opportunity.
They give the bunker Wi-Fi while converting it as a better place for the cultivation of magical plants, with better security. There is some security and protocol updates in case people find Milliways.
Isteri is aware that those measures are likely for nothing, but better than not being prepared.