I'm part of the lawsuit that he's blocking, so you could take my word for it that that news article is correct. He has since lowered the claim amount to half a billion, which is still an insane amount that's too large for letting the bankruptcy just proceed.
https://bitcoinomics.net/if-youre-going-to-get-into-bitcoin-...
No idea of the quality of Bitcoinomics as a source though.