I get the impression that the game throws out a lot at the player without exploring much of the strategy aspects as a tutorial, but having the flavor text push you towards bad strategy at times. Combine with a score oriented difficulty system that heavily rewards time and you get a game that can seem harder than it is.
Colonists don't need much to survive. Health, sanity, and comfort. None of either and you have issues, but the minimum for each isn't much. The benefits for having high are small. Comfort especially is given as the big thing to worry about, but the main benefit of high comfort is children, but you're right that that's a small benefit. Unless you're going quickly at least. Getting more colonists in the founder stage can be a big deal for speed runs.
Applicants for the first few rockets are more than enough, but they won't allow for higher population colonies. High growth won't make things easier, but it will allow for a higher score. High happiness is legitimately hard to obtain, but enough is easy. Which I think is the idea. I know in Tropico I'd never have that high of a happiness. Everyone fulfilled is wasteful, but you can get pretty decent. Plenty of homeless then, too. Does seem like you might have been not focused enough on a proper strategy, and instead going after ideals of how you think it should be, rather than playing the system. That's not the system's fault.
Colonists don't need much to survive. Health, sanity, and comfort. None of either and you have issues, but the minimum for each isn't much. The benefits for having high are small. Comfort especially is given as the big thing to worry about, but the main benefit of high comfort is children, but you're right that that's a small benefit. Unless you're going quickly at least. Getting more colonists in the founder stage can be a big deal for speed runs.
Applicants for the first few rockets are more than enough, but they won't allow for higher population colonies. High growth won't make things easier, but it will allow for a higher score. High happiness is legitimately hard to obtain, but enough is easy. Which I think is the idea. I know in Tropico I'd never have that high of a happiness. Everyone fulfilled is wasteful, but you can get pretty decent. Plenty of homeless then, too. Does seem like you might have been not focused enough on a proper strategy, and instead going after ideals of how you think it should be, rather than playing the system. That's not the system's fault.