I think it is a different thing, to be put off by a work and feel differently about the author's previous. It's quite subjective (like the reason I won't read Harlan Ellison: read 'A Dog and His Boy' at the wrong time) but we are all subjective readers (and writers).

Trying to think logically about whether one's emotional response should revise one's previous opinions is ... difficult. I'm thinking of a situation where someone is subjectively offended or upset by an author's work or author-as-person behaviour: it's hard to say that they shouldn't let that reaction change their opinions. On the other hand (how many hands am I going to need for this?!) a subjective response might not be a valid reason for objective action: if someone is offended by an author's behaviour, are they right to remove author's books from a course list, or to stop stocking that author's books in a bookshop? I don't know: I have no answers. And yet it all springs from subjectivity.