The stated rationale for the “Jans”—that a large percentage of Hamilton juniors are in high overseas programs and there are beds available—has never made one iota of sense to me. I’m not surprised by the perceptions and assumptions mentioned in the article. At a bare minimum, Hamilton should be need-blind for the Jans; it certainly can afford it.
As for your question: she obviously loves Hamilton, but if she loves the potential ED2 school only a little bit less, I think it’s worth the “risk” of a binding ED2 acceptance to have a more typical experience and to be done with the admissions madness. Good luck.