While I agree with all of your points on determining value, it's never that simple, and is often determined, in someone's mind, by the comparison made.
The comparison here is a Pinecil. I've been using a Pinecil for a couple of years now, I power it from a USB-PD power bank that's already in my backpack, and charges everything else I carry, and has more capacity and a lower price than this one, and the Pinecil without the power bank is much cheaper and more functional with its buttons and display than this iron alone; I don't need a PC (and I don't use Chrome anyway, though I do really like the WebSerial configuration).
I already own a Hakko soldering station, but I find I reach for the Pinecil 99% of the time due to convenience; only when I know I'll be doing a _lot_ of soldering in one go, and I'm going to do it at my desk, do I get the Hakko out.
This looks like a nice iron, and I'm all for supporting repairability (and iFixit in general), if someone will use it as their main station, and assuming this can perform, it seems like an excellent option.
For everyone else, a Pinecil and that powerbank you already have is an excellent option at a trivially low price.
EDIT: Fixed some typos