"Oh, it turns out that Wellspring's magic system is actually lots like the Sunshine-family worlds, except Sunshine-family worlds have had it for a long time and demons or something have been using it in unpleasant ways. It's kind of impressionable magic, so it gets unpleasant when used that way. But Matildas are all really intensely good at this kind of magic, so if they went and were good examples for it, they might be able to shift things some."