No, I think that one need not like an author or their views in order to like their books, which is a good thing, because after reading Tomalin's biography of HG Wells, he's definitely not my favorite person.
Back to Methuselah Review
I came across a reference to it when I was looking for the attribution for a quote I was using in an essay for work (that quote is: “You see things; and you say ‘Why?’ But I dream things that never were; and I say ‘Why not?’”, in case you were curious), and thought the brief plot summary sounded interesting, so I added it to my list. This despite thinking to myself "self, in all of the George Bernard Shaw books and plays that you were forced to read in school, you hated precisely all of them. Why would you possibly think that you're going to like this one?"
IGC Publishing 