whats a problem to heavilly slow down water boiling and reduce economy value of water?
In previous alphas with glass jars people simply crafted 500 glass jars, filled them with one swoop at a lake and boiled them. It doesn't matter if it takes a minute or an hour to boil, after that you have more water than you can ever use. If it wasn't fast enough, they built just more fireplaces and boiled in parallel.
These devs removed empty jar mechanic to make water hard and then added dew collector which makes water non issue - devs clearly dont know what they want
My personal experience playing the game is that water is an issue at first and you need to do some questing to make it a non-issue. And that is exactly what the developers wanted. "You clearly" formed an opinion on insufficient information.