Am I missing something, or does Crown Tundra let you get level 65+ Pokémon before the first gym?

I completed Crown Tundra on my main account, and decided to boot up my other account to get the other Regi and the other horse. I walked my trainer to the train station (I don't have the bike or Corviknight taxi yet), got of the train and started to fight Peony at the station. I quickly realized that Crown Tundra does not scale with your gym badges, as Peony's Lv70 Copperajah quickly kicked my teams ~Lv24 asses. I figured I'd have to go do some serious grinding, but the game actually lets you continue the story with the loss! From there I walked to the Dynamax Adventure area, where I was given a (much stronger) rental Pokémon. I counldn't beat Suicune, but I was able to catch a Rotom. A Lv65 Rotom. That listens to me. I did this a couple more times and now have a Lv65 Hitmonchan and Grimmsnarl. With no gym badges.

So, to cut out all the fluff:

Start a new game

Play normally until the first train station

Enter Crown Tundra

Lose horribly to Peony

Catch practically anything Dynamax Adventure (100% catch rate)

Lay claim to the Champion's throne

Is it really this easy? Did GameFreak think about this?