The article discusses the NSA embedding themselves in the Huawei support infrastructure. If true, Huawei's access is being abused by individuals who work for both Huawei and the NSA. So, in order for the NSA to abuse Huawei's access in the way discussed in the article, then that requires Huawei employees to abuse Huawei's access. Hence,
P(NSA abuses H's access) <= P(H abuses H's access)
Nothing is assumed to be happening, that's why we're talking about probabilities. We are discussing the possibility that the NSA could be infiltrating and subverting the Huawei support infrastructure. That's what the article is about. We're not discussing whether or not the NSA directly hacked Huawei. While that is also a worrying piece of news, it isn't the same thing.