They still lack intent/understanding. But a system does not need understanding for its output to consist of racially biased statements.
But let's also point out that GPT can also make very powerful anti racist statements. It can persuade people to be less biased against race. Reacting to the specific beliefs and points raised in the conversation. Generating sensible counter arguments.
In that way, GPT4 is better at refuting racist rhetoric than most people are.
So it's potential here is both good - its ability to help the fight against racism - and bad - its risk of generating racism.