I like when Pokemon games have characters that actually.. have character. It especially helps when they connect to another character. Her having Bede and Piers having Marnie made them feel like more than stock NPC's like most Gym Leaders, or Pokemon characters in general feel like.
God, it's the year 2020. People always go on about how they want a pokemon anime that tells the game story's but the games by now should be able to have stories and characters on par with what an anime would have in the games themselves.