As Van Eck describes the experiments on Mikka and Councilman Hoede’s Grisha (who are, presumably, Anya and Yuri from the first chapter), note how flippant he is about how jurda parem affects the Grisha. He notes his ownership over Mikka, for one, and it’s Kaz, rather than Van Eck, who observes that jurda parem clearly doesn’t do good things for Grisha long term, even if they can do miraculous things in the short term.