I do think it's not a big deal, but it's also a really dumb decision. Basic quality of life stuff that doesn't affect gameplay at all should doesn't need to be locked behind progress like that. And then you have your options in the bag, too, which isn't very intuitive.
Didn't LGPE have it, though?
It's a nice-cut trailer, but having a rehash of everything we've already seen when there's only two weeks left till release is...not very thrilling. I know we've been getting slow news, but I wasn't expecting "five minute trailer where all you see new is a glimpse of the legendaries' moves".
Gigantamaxing changes a Pokémon’s size and appearance! | Official Website | Pokémon Sword and Pokémon Shield
Gift Pokemon are another known method, because we know about the distributions, but it's definitely confirmed that regular Pokemon you find in the wild can't Gigantamax.
If you're going for a full dex, it makes more sense to capture one Pokemon and raise it than it does to catch one Pokemon for battles and another just for entries when they're the same species.
But these aren't near-end Pokemon or extremely rare-they're common Pokemon that are just already...
That's true, but they did still serve roles in the story, even if very briefly. Ryuki's role in the games is so small you could actually do a full playthrough and not even encounter him.
But Ryuki wasn't really connected to gyms there-he doesn't appear in the Kanto gym at all in SuMo, and only...
Doesn't really fit with the spy theme, though, does it?
They just...made him? I mean, I love unique character designs, but why did they make only Ryuki and no one else if they weren't going to do anything with him?