I do get annoyed sometimes when people insist all the MEDICINE went away (whatever limited resources they still had of it) because obviously nobody meant to imply that -- authorial intent was that they unloaded a ton of supplies with them, and I never assumed anything else.

Exactly. It makes me scratch my head in confusion wondering how people made that leap in the first place, since I never assumed they just up and left without any kind of needed medical supplies and other survivalist equipment. It just wouldn't make sense that after everything they went through they would suddenly be careless with their own survival, you know?

I think people also forget what a crap-ass existence it was to live on those spaceships [...] the final season was dropping anvils left and right that all that technology was unsustainable and Galactica itself was in its death throes.

I do think many people forgot that aspect of their lives, as well. I keep hearing arguments about how they could have teared down the ships to make other uses of things that are way advanced to help them instead of reducing themselves to not surviving longer and whatnot. But I think they're forgetting the major point that their technology was disintegrating bit by bit. Them starting anew is something they needed, giving humanity a fresh start, giving themselves a fresh start on life. I can understand the concerns about whether they could have used certain things from the ships themselves or modern weapons when venturing off to new territories, but ITA that it fits perfectly with these characters and everything they had endured over the years.