What do these controversial opinions have to do with the NYT writing a piece about Scott's early warnings about covid, and Scott's assessment that it would damage his relationship with his patients? Are you arguing that warning everyone ahead about the virus was controversial?
Not in this case, now, no. But he's said plenty of things that some proportion of people find controversial enough to bother harassing his job to get him fired. If his name and website get more widespread acknowledgement, he expects the level of harassment to increase proportionally, which he fears could get him fired.