Small studio, don't have to generate a lot of sales to keep them afloat. Updates push visibility and generate new sales. Obviously, they need new projects to keep them afloat in the future.
The enhancements they're making to NMS appear to be backports from the Light No Fire engine, so my impression is that they are releasing updates to No Man's Sky as a marketing effort while the actual technical work is predominantly on the next game.
The enhancements they're making to NMS appear to be backports from the Light No Fire engine, so my impression is that they are releasing updates to No Man's Sky as a marketing effort while the actual technical work is predominantly on the next game.