>>45824458I mean even if it's a glorified cutscene it's still a really cool moment and one of the only times Game Freak's claim that they wanted to focus on animations with the new game actually feels legit. Not to mention there's already a real fight with Eternatus right before this so it's not like they're robbing you of anything by making the last one basically unloseable.
Plus if your Pokémon aren't shit you can buff up the dogs and participate that way.