Yes. it's so horrible that absolutely no-one tries to reach him, to take some news, to see how he's doing.
I think it's a writer thing : maybe they still don't know what to do with the character, or they don't know how to solve what happened between him and Adam yet. So they prefer to do nothing, till they do their next move on te character. What I mean is they don't want to do anything that might contradict their future plan. When they have one. So their "ignore mode" is their solution so far.
What I would do is to use that plot weakness to turn into something :
Steven has realized that no one gives a damn about him. No one called or checked on him. So now that he is getting better, he doesn't want to do anything with his family anymore and couldn't care less that Adam is messing with their lives. Steven feels that till the moment he was not a Carrington anymore, Blake and his family didn't care any more (well, would he be wrong to think so ?). So he has decided to move and to stand for him now. He will start his new life, and his political career (as the ex show runner hinted for Dynasty season 4). His family will try to reconnect with him... And it will be not easy.