I'd like to chip in, as we've had similar cases over on the EU boards.
Somewhat recently we had this case, you'll see that Eambo focused on one aspect and I focused on another, both viewpoints are completely valid in determining whether your content deserved removal, yet we both focused on different aspects.
That's what being humans are about, we focus on different aspects, sometimes we overlook details, other times we choose to keep the focus on the most egregious part, it varies from person to person.
The moderator in question may or may not have focused on every single aspect of your comment/thread which violated the different the rules over here, but they did deem it fair to remove based on the notification you've received.
Is moderation flawless? Absolutely not, the moderators are humans, and there's bound to be differences of opinion and even mistakes at some point.
If you're asking if the removal of your content was a mistake, the answer is a clear and definitive no.