Did you just completely forget about Nintendo's whole thing with Bayonnetta 2? Game initally made by a third-party for a Non-Nintendo platform, a game that's nothing like a standard Nintendo game, is developed by a guy with an attitude Nintendo would not allow anyone who works inside their own companies to have, and doesn't really get enough retail sales to justify what Nintendo did for Platinum Games there? There aren't a lot of other logical business reasons to justify what Nintendo did for the Bayonetta IP there (There's plenty of other ways Nintendo can "Diversify their library" without resorting to the extremes they did), so it's almost certain that it was an "Award Bait" strategy, and as for how well that worked, well, remember the Spike Video Game Awards in comparison, and how they effectively made categories specifically for Nintendo games to exclude them from winning the "real" awards? For someone who effectively considers TGA as a reboot of that, Bayonetta 2 ended that streak, being their first GOTY nominee and the first time they got nominated in something where it didn't feel like the award was either "by default" or for a category tailor made for be specifically for them. Today, Nintendo doesn't consistently win often, but they at least get nominated more, even at times the nominations sometimes seem "token" and are for games that definitely aren't going to win.
As for using Nintendo's award history at TGA as reference? This is only the second time Nintendo's won the "Best Action/Adventure" category. The last time was in 2017, with Breath of the Wild (which currently is also Nintendo's only GOTY winner). Now, for that game at least, I would like to hope it won entirely on it's own merits, although "open world" is technically one of those "TGA award bait" checkboxes. (Note to anyone else ready to reply: Let's not bring up the optional Link crossdressing sidequest. I don't think TGA is that crazy.)
Nevertheless, for that particular category, that is not a lot of reference point for Nintendo winning awards. Their other notable award winners (outside "best handheld game" and "best family game" categories, since those felt like a "token Nintendo award" to begin with) are mostly multiplayer games with ensemble casts like Mario Kart, Smash Bros, and Splatoon - and they mostly won, well, "Best Multiplayer" or "Best Sports" in the early years before Overwatch, Fortnite and Among Us became trendy.