> In it, the company claims that The Wirecutter initially picked NextDesk as an editorial recommendation but later downgraded the recommendation after NextDesk declined to set up an affiliate-revenue agreement.
I believe you're taking "after" in this sentence way too literally. The order of events isn't in dispute, what's at issue is whether Nextdesk's declination to enter a revenue sharing agreement caused Wirecutter to downgrade their ranking.
You're reading a causal meaning into "after" that clearly was not intended by the author of Wirecutter's response. They are clearly expressing a simple temporal relation and not a causal one.
Please be clear that I have no opinion on the truthfulness of the Wirecutter's response. Perhaps they're truly corrupt as all hell. I have no inside knowledge of how they operate.
However, it is absolutely clear you're reading something into the "after" that was not intended.
"After" is a temporal word. We have may ways to clearly express cause that could have been used. Generally, one uses "after" to imply cause without explicitly saying it.
Instead, Wirecutter has made a factually incorrect statement. That Thing 1 happened, then Thing 2 happened, then Thing 3 happened is not in dispute. Also not in dispute: Thing 3 happened after Thing 2, which happened after Thing 1.