100% GTFO. Don't burn yourself out. The business people have obviously fucked up in this equation. Developers are literally the absolute last step in the proces

100% GTFO. Don't burn yourself out. The business people have obviously fucked up in this equation. Developers are literally the absolute last step in the process of building software. If they fuck up at this step then the planning part was basically non-existent. If anything GTFO and read up on how business works so you know where you are on the foodchain and how it's not your fault for wanting to leave before it hits prod.