The author can barely contain his hatred for the politics of Signal's founder (about which I know nothing outside this article.)
More importantly, he's possessed by the fallacy that governments have agendas rather than people within governments having agendas. This is important because he uses it to say that nothing downstream of the CIA can ever have the goal of promoting anonymity. The most obvious contradiction to this within the domain of US intelligence agencies is NSA's freelance tool Ghidra, but hopefully that concept is amply clear when mentioned, even without examples.