Or not.
You see Mr. Beale, you are not the arbiter of "good sci-fi", at least in my eyes, so you may want to keep that in mind the next time you want to judge all things through your blurry lens of what is "good" or not.
Couldn’t “science fiction” include the fictional treatments of developments in the history of science ? You know, Newton at Cambridge ... Heisenberg and Bohr at Göttingen ... that sort of thing. Of course, you could embellish such stories with fantastical elements, as has been done more than once with Mark Twain, as in e.g. STTNG.
You could go nuts with Galileo! In fact, that’s my fantasy ... my Galileo movie.