No problem.
> So if you want to discard the concept of good taste, you also have to discard the concept of good art. And that means you have to discard the possibility of people being good at making it.
This skips a step. It assumes without argument that production skill corresponds to subjective preferences. There are many people who are extremely skilled who produce things people hate and there are many productions which take virtually no effort which people love. Again, good blahblah is just consensus of subjective preferences. The whole article is just a disguised appeal to popularity fallacy that depends on confounding skill and value through equivocation on "good."