If it was relevant to the discussion, and you actually included some of the content in the discussion (i.e. quoted the relevant parts with a link to the fuller article for people who want to check greater detail, rather than just a link) so people didn't have to jump off-site to read your contribution, then I don't see a problem with that.

It was more a mention, then a link to a page I knew had more info for the curious ... seems silly, to me, to try and find some other page with that info just in case someone sees an affiliate link.

In part the page is about my reaction, which is inter alia what was pertinent, that info definitely isn't elsewhere.