Yes, dealing with bigoted mortals is much less taxing on the psyche than getting whisked to heaven where you have to deal with your god-powered granny for most of your childhood before more than likely trained to become a living weapon. Like a crazier version of Judgement!Luka.Leaving a child alone in what looks to be the middle ages, in a city that despises outsiders, was less risky than revealing herself?
The point was to give Lucifina an ultimatum; either she would survive her illness by becoming an angel again before returning to the fold, or she would die while remaining a human. Ilias thought that Lucifina would unilaterally choose the former, but underestimated how much she treasured humanity over her own life.And Ilias knew where she was, she pinpointed the plague after all, so what was the point?
I think you're getting the order of events wrong. People didn't start dying from illness until Lucifina did; that was because in Ilias' grief of having killed her, she directed that bitterness towards the people that persecuted Luka, with them dying as a result of this new plague.And what lesson did she teach him exactly? Because, for all effects and purposes, Luka simply thought his mother died from sickness as many others in his village, there was no lesson, no sacrifice here, just a last wish which Luka hated, as it was seen in his confrontation with Lily.
Regardless, there's a difference between being shackled by your parents' decisions, and being inspired by their actions to do what you think is right. Luka's belief that his own death could atone for his dad's actions is a separate matter from his belief that the correct path forward is co-existence between humans and monsters. I've already said that the lesson was to have faith in humanity, but the thing Lucifina's specifically sacrificing is her well-being and mortality in exchange for either not abandoning Luka to save her own skin, or bringing Luka along with her only to fall prey to some exorbitant scheme. It's not something Luka would be aware of, but it should be readily apparent to the player.
Probably because Ilias doesn't know that Micaela's still around (if Rapunzel's reaction to seeing her in Enrika is anything to go by). It wouldn't make much sense to put her sister through the exact same thing she just went through.She didn't even tell him to look for Mikaela
She didn't tell him to give Luka the Goddess Sword, she just let him know that Luka was going to be the one to defeat the Monster Lord. He gives Luka the quest to getting the Goddess Sword because it's the game poking fun at how RPGs make the player do a random fetch quest to get a random weapon (like how being Baptized lets you go inside people's houses and take their things).and tried to give him the Goddess Sword (she did give a dream to the Pope) even if it was ultimately a joke