Yeah,that's true. Her The Left hand Of Darkness is my all time favorite and I wish she had followed up on that,but nope. Grass was my other favorite. These are really the only two, of all her books I read, that stick out in my mind . They actually made an impact over the years for me and I recommend them to others as need be. The rest were just so so for me.
A few I could not slog through and gave up on. I can't remember which those were now.
One of her books was made into an hour long movie and aired on PBS. I can't remember what that was either.
The Lathe of Heaven?