>>55708416Cynthia is all about expectations. Her teams are designed to setup and sweep new players with her last Pokémon. Also, no fairy type Pokémon and no party EXP share really makes a difference.
This is also why they had to make the Volo fight 6 versus 8. They knew most players would recognize the strategy of a Cynthia team, so they used misdirection to give the player a false win where the player throws everything at the sixth Pokémon, setting up the legendary sweep of your team. The goal was to make most players lose the first time. Once you know what is coming, it’s not that hard to overcome.