The starcourge turning people into monsters already makes it a magical thing, I don't understand why it needs further explanation to make it "more magical" than it already is.
I agree, I feel like some people are just nitpicking and literally forcing themselves to get upset over trivial details at this point just for the sake of being upset. Folks are taking the whole parasite/virus infection thing way out of context and blowing it way out of proportion. Just because we have an explanation that resembles how real life disease operates doesn't suddenly undermine the clearly magical aspects of the Star Scourge. It's still a magical parasite which alters the human body to become a literal mythical monster that has magical abilities.
Also in regards to talks of a cure people are forgetting that only the Empire really knew where daemons came from thanks to Ardyn being an expert on the matter. It's ancient and lost knowledge to everyone else and as far they're aware people are just being snatched up by these monsters who just happen to exist. Noct only learns the true origins of daemons once he reaches Zegnautus Keep via reading the notes scattered about in the labs and through Ardyn confirming it. So people would have to be aware of the true nature of the Starscourge to even begin looking at ways to cure it. Hell the Starscourge doesn't even get mentioned by name until you're super late into the game.
If by some chance people did find out then even in real life we don't have cures to every disease possible no matter how aware of them we are or how much time we've had to study them. At most we have managed to slow the effects of some of the more dangerous shit but there are still things that we can catch that will absolutely kill us. The only response to Ebola, a more recently discovered disease, is to pump the person with it with as much blood as they're losing and hope for the best (as far as I'm aware) and the mortality rate for that disease is super high. While on the other end of the spectrum we can barely even tackle cancer, a disease we've known about for decades at this point.
So I don't see where this notion of poofing an anti star scourge vaccine/treatment into existence suddenly came from. The story made it pretty clear people were unaware of what was truly going on with only some people barely scratching the surface in regards to what might be happening. Even if people did know what was happening it wouldn't suddenly make them capable of curing the disease. Like how are people supposed to reverse a magical transformation? Noct and his magical powers were the only answer to the magical disease that only a handful of people were actually aware of. That's a perfectly satisfactory aspect of the story.
I know FFXV's story and lore has some problems but complaining about how the Starscourge was explained and handled is just nitpicking at this point. It's a perfectly fine explanation and well handled aspect of the story. There are bigger things to worry about in regards to FFXV's story.
