Yup. It's unfortunate that this still dogs them in internet forums, but it's really only on internet forums where someone always insists on bringing it up.
One thing I love about GiveWell is that they publicize and learn from their mistakes, this one included. http://www.givewell.org/about/shortcomings They're really, really good people. Like everyone, they did something dumb. Unlike most, they learned from it and spend their lives trying to improve the world.