…”now” being the key word.
If we are to treat games equally regardless of who makes them, then the same holds true for Starfield. Only it likely wont need as much added content to make it “a really good game” as it already is… now. It already ships with more content than NMS had at launch.
The improvements Bethesda will make over time will be minor quality of life improvements. Performance…maybe a new mission here or there but much like 76 (which also lacked at the start and was later redeemed with a flood of content), Starfield was built to last a long time and benefit those who put in the effort to really want to explore the stars.
It’s definitely the type of game for those with a creative and explorative mind with time on their hands.