You make some good points, really.I'd thought about this in 2020. I'll cut-and-paste what I said back then:
April 16th, 2020
If Picard had Irumodic Syndrome for multiple seasons, that would be multiple seasons where we'd start to question whether or not he had all of his mental faculties intact. Clearly PIC is in a galaxy that's been jaded by the events of DS9 and what happened afterwards, so do you really want the person fighting for what's right in this changed "world" to be someone who's lost his mind and who no one should take seriously? I don't think you do. I don't think most people do.
So either they have to find a miracle cure for the Irumodic Syndrome, or he has to die if there's truly no cure. In which case, they made a synthetic body for him and now they can take Picard into a place next season that isn't him moping about 20 years ago.More succinctly, I think it was a way to cure Picard of his Irumodic Syndrome without actually having to come up with a cure for it, so that Irumodic Syndrome could be and remain uncurable.
Whether or not it would've been better to just have a cure or to resurrect him is a debatable question with no right or wrong answer. It depends on what they do with it next season. But if you can accept Spock being resurrected through something as wonky as Genesis, then you can accept Picard being resurrected by having his essence transferred into another body. Something that's more grounded in science-fiction than the fantasy that was TSFS.
EDITED TO ADD: And it was a way to have Picard be able to have a heart-to-heart with Data. Something missing from NEM and -- even though it wasn't the same -- something closer to being along the lines of Kirk and Spock at the end of TWOK, where there was a heart-to-heart there as well. Having Picard and Data both at the crossroads of death put them on equal footing and in a "neutral" setting to be able to interact with each other.
Data's sacrifice in NEM and his farewell to Picard in PIC S1 combined together are the equivalent of Spock's sacrifice and farewell to Kirk in TWOK.
Data's revival in PIC S3 from what was downloaded into B4, and the integration of his mind into his new body, is the equivalent of Spock's arc in TSFS.
When Data is fighting with Lore in his own mind and finding his way back to himself, I think it's the dramatization of Data fighting his way back to who he was. It's kind of like Spock finding his way back to himself in TVH. This last analogy is the broadest of broad strokes.
Looking at NEM and PIC S1 as a long goodbye, does allow Data's death to carry more weight, especialy if you watch it back to back.
I could misremembering AGT, but I was under the impression that Irumodic Syndrome was always just a possibility for Picard, rather than a definite fact. I recall a scene in sickbay to that effect, where Beverly says something along those lines. So, if I am correct, it felt a bit unnecessary to include it.
Also, how it was presented in PIC S1 seemed to be different to what I remember in AGT, as he seemed more cantankerous and woolly-minded opposed to the occasional fainting episode. I do really need to rewatch it all again, and ofc conditions can manifest itself in many different ways, but it just seemed like things didn't line up quite right.
It's all likely to be a simple case of subverting expectations and adding extra stakes.