It means that Taleb got stupidly, ridiculously lucky with an option trade one time (in a way that he didn't expect or intend) and, as a result, he is rich and therefore people now pay attention to him on all kinds of subjects outside of his expertise.
I read his Black swan and Skin in the game and he had some good ideas there, that stuck with me, so definitely recommend these books. But your summary is very accurate, so his books should be taken with a huge grain of salt.
It means that Taleb got stupidly, ridiculously lucky with an option trade one time (in a way that he didn't expect or intend) and, as a result, he is rich and therefore people now pay attention to him on all kinds of subjects outside of his expertise.