Whilst I agree with the first bit I also do think there is some benefit in those that published him looking back and realizing they overlooked some very obvious red flags (his comments about women were often misogynistic) because they liked some of his other political commentary.Personally it doesn't matter what his politics are. Liberal, Toy, Green, Communist - what he's been accused of is horrible.
Which is why it's a bit weird to take this line. You very strange ferret.
Think checking whether your biases are affecting your judgment is good practice - Democrats lauded and defended Bill Clinton for way too long for instance.