Ultimately, it's a hit piece from Bordigists that are trying to defend the merits of the same western Marxism Losurdo had dead to rights in Western Marxism. They use "neo-Stalinism" to reference the resurgance of Marxism-Leninism in the west, and consistently downtalk AES. They also uphold the secret speech as legitimate, and believe markets are capitalism in and of themselves, downplaying the existence of socialism in real life.
It's slop, ultimately, and I hope that doesn't count as breaking the sectatian rule here. So many of their arguments are utterly unbacked and rest on the assumed success of prior ultraleft arguments against socialism in real life, so many of their arguments rely on the debunked secret speech, and ultimately they work backwards from their conclusions to make a hitpiece on Losurdo for calling them out.