I think it is a reaction to the "Roddenberry is god" views popular in the '70s....
Yeah, agreed. Few humans are without flaws. And most often their flaws don't lessen the import of their achievements. I'd like to think Roddenberry had enough respect/decency not to force himself on an actress in his employ... and as said by others, I'd need to see proof, not just innuendo. But whatever the case, he was a human being.... just like you and me.