So the final boss in a 15-year-old videogame that is from a series that features that same boss as the final boss in nearly every main entry going back over 30 years...is a spoiler? I mean, in the strict sense of "I didn't know this but now I do," yes it's a spoiler. But is it a, "You've shattered my world and ruined the 20 hour experience by telling me the identity of the guy you fight in the last 10 minutes" kind of spoiler? When BotW came out, Nintendo announced on their twitter feed that there were flowers called "Silent Princess" and groups of people on the internet freaked out at this spoiler. Recently, Nintendo's official Mario Odyssey website had art on it's page that people thought was a spoiler. Where does the spoiler hysteria end? It's just videogames. It's not like we're revealing the modern equivalent of "Aeris gets killed by Sephiroth halfway through" or "the bad guy was manipulating you the whole time."