We are aware of all the points raised here. The main storyline is a big part of the game, yes, but not all of it. There will be a lot more to do after it upon global release.
Please remember the game is in early access. It will in no circumstances be released as it is now. The purpose of early access is to colelct feedback, hunt down bugs, and make changes to various elements AND systems prior to the official release.
Our team is currently working on gameplay mechanics and balancing, and will then move on to other QoL improvements.