Answer this: Are you watching the anime?
Because things are done differently in the anime than in the video games moreso than trying to explain that Alola is different. You shouldn't base anime discussion points using the video game, seeing as they're different enough to make VG talking points invalid.
1. Hala having different Pokemon in the anime than from the game (same with Olivia, + her GT was a Double Battle)
2. Hala giving the Electrium-Z instead of the Fightium-Z to Ash because of Tapu Koko
3. Lillie (Not living at Kukui's place, having a Alola Vulpix instead of a Cosmog)
4. The Trial Captains (Mallow, Lana, Kiawe, Sopho) not being Captains and instead attend Pokemon School
5. Due to #4, the Island Trials thus far have been given by the Kahunas
6. No Hau
Among many others.
I mean if you're going by video game logic, multiple times anime info conflicted with the video game, with a few past examples being most notable includes:
Water Sprinklers allowing Ash to use Thunder Shock on Onix (The closest thing in the video game is Rain Dance, see if that allows you to use electric moves on Ground Pokemon)
Thundershock to the Horn
Mega-Waves allowing multiple Mega Evolution by a single person
Team Flare/Lysander in the anime vs VG
Team Rocket not being disbanded by this point in the anime, unlike the game
When talking about the anime, you should use facts from the anime. If you want to use video game points, it's only applicable to stuff like Origins or Generations (which follow the game plot more closely than the regular anime).
Otherwise it's like using the real-life rules to explain what was going on during Duelist Kingdom/S1 of a certain card game not to be mentioned here. It doesn't work.