I know it was just to highlight the lack of self-confidence, but why would Luliam marrying Daichi be even on the table... I guess Eldora does currently have the problem of unstable magic or whatever, but Luliam isn't much better if she can't cast it all all.
... speaking of which, they didn't seem to address whether Tamura's problem with magic has any bearing on being able to help princess with power surges. They let her travel to the elven village so I suppose it's somehow fine? I guess it doesn't matter that magic is "leaking out" as long as it's removed but you'd think they would at least show some concern over this, since this was such a big deal.