In general, it's more or less impossible to litigate a legal decision based off of 2 quotes in a public statement. It's why we have courts of law, it's why the legal system is predicated on deliberation.

> now disproven legal theories

Disproven? According to whom? The whole point of the press is to show its work to the public. Maybe you're correct that it's disproven! But I would have no way to know how/why it's disproven as a NYT reader. Anyone that wants to demonstrate to voters that Amazon's legal theories are disproven needs to show their work.

The NLRB is the legal system for deciding such matters.

Correct, and it's accountable to voters, it isn't some opaque black box (or rather, it shouldn't be). The whole point is that, in a democracy, the press (NYT et al) is responsible for fully reporting on the workings of the government (NLRB). The GP commenter is pointing out that the NYT hasn't adequately done that, and I tend to agree.