I agree. The problems I ran into are things like multiple "pits can't be conjoined so you have to place them in a checker pattern of 1x1x1 holes" and "what qualifies as non-flammable full blocks" ... Like, obviously stone, sand and gravel, but things like packed dirt didn't really occur to me, so I ended up running around for ages trying to find sand or gravel since I didn't have the tech for harvesting stone yet.